What change in the mass number of a nucleus occurs when the nucleus emits an alpha particle?

Answers

Answer 1

Answer:

Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.

Explanation:

Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.


Related Questions

What is the name given to the network of smaller blood vessels providing nutrition to the walls of large blood vessels

Answers

Answer:

capillaries

Explanation:

what was the first genetically modified food approved for sale in the us

Answers

Answer:

Flavr Savr™ Tomato

Explanation:

Describe why enzymes are important in all living organisms?

Answers

Answer:

Enzymes are important because they make the chemical reactions in cells happen quickly.

Enzymes, by speeding up biological reactions, ensure that all necessary activities in a cell can take place simultaneously and prevent one particular activity from overtaking the entire cell or organism. This is possible because enzymes allow chemicals to react more specifically with only certain substances rather than reacting indiscriminately with any number of different substances within cells.

The most famous example of this enzyme effect is when stomach acid reacts with pepsin that turns food into a liquid. The body then uses this liquid for absorption through the intestines where nutrients are then used throughout the body. It's important for people to have enough enzymes in order to digest their food fully however if

Explanation:

Is the cholesterol molecule mostly polar or mostly nonpolar?

Answers

Answer:

Most of the cholesterol molecule in non-polar and therefore associations with the non-polar fatty acid tails of the phospholipids. However, the hydroxyl group (-OH) on cholesterol carries a negative charge and therefore associates with the polar environment of water either inside the cell or outside.

Explanation:

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Answer:

Cholesterol is very non-polar, except for the hydroxyl group attached to the first ring.

Explanation:

Which of these rocks are most easily dissolved by ground water?
Limestone
shale
sandstone
conglomerate

Answers

LIMESTONE

composed mostly of the mineral calcite (CaCO3) are very susceptible to dissolution by groundwater during the process of chemical weathering.

Hope It's Help

Answer:

Limestone

Explanation:

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how may earths would fit inside the sun?

Answers

Answer:

1.3 million Earths

Explanation:

Can sunlight change the distribution of traits in a population?(1 point)

No, because the environment can only change behaviors.

Yes, because the environment is the only factor that can change traits.

Yes, because the environment can factor into the distribution of traits.

No, because the environment can only change traits in individual organisms.

Answers

A number of factors including environmental factors (for example sunlight) can also play a role in how the traits in a particular population is distributed.

Sunlight can change the distribution of traits in a population because the environment can factor into the distribution of traits.

The distribution of traits is changed when factors in the environment change/evolve and influence natural selection. These environmental factors including sunlight alter the selection of traits passed to generations and can have an effect on the distribution of the traits on Earth.

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The sunlight can be a factor for the distribution of traits in a population. Option C is correct.

Natural selection:

It is phenomenon in the evolution in which a population of species in distributed in the habitat or evolve by the certain traits that fits in the nature.

For example-

A population of a species have two types of traits,

1. Individuals that can bear the intense light.

2.  Individuals that can not bear the intense light, prefer low light.

After several generation the whole population will divide in the groups according to their ability to bear the intensity of light.

It can also result in the new species that only wake up at night to avoid the sun.

Therefore, the sunlight can be a factor for the distribution of traits in a population.

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Through which of the following room-temperature substances would sound travel the slowest? a water b rubbing alcohol c oxygen d glass

Answers

Answer:

oxygen I think soooooo yeah

Answer:

Oxygen

Explanation:

label the parts of the microscope​

Answers

Answer:

1. Ocular lens
2. Body tube
3. Head
4. Nosepiece
5. Objective lenses
6. Stage
7. Diaphragm
8. Condenser
9. Microscopic illuminator
10. Arm
11. Inclination joint
12. Base


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How do lenses correct vision?

A.) They bend the cornea.
B.) They reflect light away from the retina.
C.) They reflect light towards the retina.
D.) They bend light so that it focuses on the retina.

Answers

Answer:  D

Explanation:

Glasses correct vision by allowing your eyes to focus light on the correct spot of your retina. The curved frames bend light, and with the right prescription, these frames manipulate the light to reach the correct spot on your retina.

Glasses improve vision by focusing light on the retina. With the right prescription, curved frames bend light to reach the retina.Therefore, option (D) is correct.

What is the function of lenses?

Your eyes will be able to focus light on the appropriate portion of your retina when you wear glasses. This will result in improved vision. Light is bent by the curved frames, and when combined with the appropriate prescription, these frames may modify light such that it falls on the retina in the correct location.

Myopia, often known as the inability to see things that are far away, can be rectified with a lens that has a diverging power, which lowers its overall strength. The condition known as hyperopia, in which a person has difficulty seeing things that are up close, can be treated with a lens that converges light in order to boost its power.

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What are the two things that the mitochondria need to take in for Cellular Respiration to occur?

A. Sugar (glucose) & Oxygen
B. Carbon dioxide, Water, & Energy
C. Neither of these is true

Answers

Answer:

Oxygen and glucose are both reactants in the process of cellular respiration (option A)

Explanation:

Oxygen is needed to help in the process of transforming glucose into ATP.

Which of the following most accurately describes what affects Earth's ocean tides?


The Sun and Moon, but the Sun impacts Earth's tides more because it is closer in distance to the Earth.


The Sun and Moon, but the Moon impacts Earth's tides more because it is closer in distance to the Earth.


The Sun and Moon, but the Sun impacts Earth's tides more because it much more massive than the Earth.


The Moon is the only celestial object that influences Earth's ocean tides because it so close in distance to the Earth.

Answers

The answer option that most accurately describes what affects Earth's ocean tides is: B. The Sun and Moon, but the Moon impacts Earth's tides more because it is closer in distance to the Earth.

A tide can be defined as the rise and fall of water level in water bodies such as lakes and oceans, especially due to the combined effects of the gravitational force of attraction exerted by the Moon and Sun on planet Earth.

Hence, an ocean tide describes the episodic changes in the height of the surface of an ocean as a result of the gravitational force of attraction exerted by the Moon and Sun on planet Earth.

In conclusion, the Earth's ocean tides is largely affected by the gravitational force of attraction exerted by the Moon than that of the Sun because the Moon is closer in distance to the Earth (approximately 400,000 kilometers).

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What are the two principle forms of ossification that occur in the development of the skeletal system

Answers

Answer:

Ossification is a process in which the mesenchymal cells and cartilages convert to bone during development. it is has two types: Membranous and endochondral ossifications. It occurs in mesenchyme which has formed a membranous sheath (figure 4) .

Helpppppppp! Its biology related <3 help help !

Answers

C, this answer mentions the many benefits of the marine life and reefs in the ecosystem, therefore the only answer could be C because it speaks of preserving these organisms

how does dna polymerase add dntp monomers to the growing chain?

Answers

Answer:

The 3′ carbon of the DNA chain forms a covalent linkage with the phosphate group on the 5′ end of the dNTP. ... The system detects mutations because they produce an irregularity in the DNA molecule.

Explanation:

What is protista ???

Answers

Answer:

Protista is a kingdom or large grouping that comprises mostly single-celled organisms such as the protozoa, simple algae and fungi, slime moulds, and (formerly) the bacteria. They are now divided among up to thirty phyla, and some have both plant and animal characteristics.

the earth’s_______and position relative to the________effects the lengths of_________and________.

*not multiple choice*

i need it asap. thanks!

Answers

distance

sun

day

night

The Earth's distance and position relative to the sun effects the lengths of day and night.

why do polygenic traits show bell curves in variation

Answers

Answer: because there are multiple genes that play a role in the phenotype, and each gene could have multiple alleles. This can give a range of possible phenotypes from all the variation that's coming into play here.

in pea plants, green pods (G) are dominant and yellow pods (g) are recessive. If a plant has green pods, which two allele combinations could it have?

Answers

Answer:

The two combinations are Gg and GG.

Explanation:

Please, help! If you don't know, please don't give me the wrong answer.

Answers

Answer:

Option C

Explanation:

The hydrogen atom in the water bond to the hydrogen atoms in the air create a greater surface tension than most other liquid..

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Answer:

C

Explanation:

unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole and a negative charge on the oxygen pole.

During subduction oceanic crust is pushed down toward the mantle and _____.

Answers

“ I would say it sinks into it.” Is this a multiple choice question ?

Read the paragraph.

There are two main kinds of winter storms involving snow. A large amount of falling snow is called a snowstorm. Then, there is the blizzard. A blizzard is a very violent storm. It features extreme cold, strong winds, and low visibility.

What compound-complex sentence can be formed from the underlined section of the passage to add variety to the paragraph?

Snowstorms bring a lot of snow; blizzards are violent and they feature extreme cold, strong winds, and low visibility.
One is a large amount of falling snow called a snowstorm, and the other is a violent storm with wind, cold, and low visibility called a blizzard.
The snowstorm is a large amount of falling snow, but the blizzard is much more violent; it features extreme cold, strong winds, and low visibility.
The first is the snowstorm, which brings large amounts of falling snow, and the second is the blizzard, a violent storm that features extreme cold, strong winds, and low visibility.

Answers

[tex] \: \: \: \: \: [/tex]

question

What compound-complex sentence can be formed from the underlined section of the passage to add variety to the paragraph?

answer

The snowstorm is a large amount of falling snow, but the blizzard is much more violent; it features extreme cold, strong winds, and low visibility

hope it helps

[tex] \: \: \: \: \: [/tex]

The first is the snowstorm, which brings large amounts of falling snow, and the second is the blizzard, a violent storm that features extreme cold, strong winds, and low visibility. Therefore, option (B) is correct.

This compound-complex sentence serves the purpose of enhancing the paragraph by introducing supplementary facts and information, so contributing to its overall variety. This article provides a comprehensive analysis of the two primary categories of winter storms, namely snowstorms and blizzards, elucidating their distinct properties in a coherent and structured fashion.

The sentence employs a blend of subordinate and main clauses in order to effectively communicate the information.Therefore, option (B) is correct.

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The daughter of a couple is colorblind. Her mother has normal vision. B - Normal; b- colorblind. The genotype of the mother is ______.

Answers

Answer: Bb

Explanation: is the mom has B shes going to need to be able to cancel it out

How do I get rid of my Self harm scars??

Answers

Boii do i sure wish i knew T^T

name four classes of arthropod ​

Answers

Answer:

insects

myriapods

arachnids

crustaceans

what is the function of cholesterol in the cell membrane?

Answers

Answer:

It reduces the permeability of the cell membrane

What are the two types of force in simple machine?​

Answers

Answer:

there are many..

Explanation:

wheel and axel are two type of forces in simple macine

Explanation:

any two types of force are : contact force & frictional force.

hope this helps you.

Question 27
A prokaryotic cell has which of the following?
A
Centrioles
B
Lysosomes
C
Plasma membrane
D
Mitochondria
©
Endoplasmic reticulum

Answers

Answer:

C) Plasma Membrane

Explanation:

The four main structures are Plasma membrane, ribosome, cytoplasm, and genetic material.

The sensory __________, such as the ear and eye, are sensitive to external or internal stimuli. Organs receptors transduction adaptation.

Answers

The answer is organs

Answer:

organs

Explanation:

took on test

kyle has a cancer of the lymph nodes or glands. what type of cancer does kyle have?

Answers

it’s lymphoma cancer
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