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OLga [1]
3 years ago
5

Which statement describes what happens to elements during radioactive decay?

Biology
2 answers:
ioda3 years ago
7 0

Answer:

The correct answer is option A-"They release energy".

Explanation:

The phenomenon of radioactive decay, also known as radioactivity or nuclear radiation, occurs when an unstable atomic nucleus emits radiation and loses energy and mass in the process. The elements during radioactive decay release energy and mass trying to reach a stable form. The material that has the unstable nucleus is considered radioactive.

bulgar [2K]3 years ago
5 0

Answer:

Option (A)

Explanation:

Radioactive decay is usually defined as a process by which an unstable nucleus of an atom continuously disintegrates into a stable nucleus, resulting in the liberation of a large amount of energy as well as matter.

The radioactive substances undergoes radioactive decay and these released energy is very harmful as they are emitted in the form of ionizing radiation.

These process of radioactive decay is commonly known as radioactivity.

Thus, the correct answer is option (A).

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How is the atomic mass of an atom calculated?
Stella [2.4K]

Answer:

Protons + Neutrons = Atomic Mass

Explanation:

Each Proton and Neutron weigh one  (amu) adding all the protons and neutrons together gives you the atomic mass. (Electrons count as the .0 and don't play much part. Just round to the nearest number.)

6 0
3 years ago
Which part(s) of a telephone involves the conversion of sound waves to electrical signals?
Sliva [168]
The correct answer is letter B. The microphone is the part of the telephone the converts sound waves into electrical signals that can be sent through the phone line and then towards the receiver on the other side. The telephone is one of the most important inventions made by man as it allowed communication to speed up through time.
7 0
3 years ago
In a population of plants, the allele for long stems is completely dominant over the allele for short stems. If 35% of the popul
KatRina [158]
Assumptions:
1. Equilibrium has been reached for the allele proportions
2. Absence of <span>evolutionary influences such as </span>mate choice<span>, </span>mutation<span>, </span>selection<span>, </span>genetic drift<span>, </span>gene flow<span> and </span>meiotic drive<span>.
</span>
Defining L=long stem, l=short stem, and L is dominant over l.
f(x) = frequency of allele x  (expressed as a fraction of population)
Then the Hardy-Weinberg equilibrium law applies:
p^2+2pq+q^2=1
where 
f(LL)=p^2
f(Ll)=2pq
f(ll)=q^2

Given f(ll)=0.35=q^2, we have
q=sqrt(0.35)=0.591608
p=1-q=0.408392
=>
f(Ll)
=2pq
=2*0.408392*0.591608=0.483216
= proportion of heterozygous population

Answer: percentage of heterozygous population is 48.32%
7 0
4 years ago
What is activation energy?
Aleks04 [339]

Answer: The activation energy is: the energy needed to get a reaction started

Explanation: this is dealing with enzymes and their reactions

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3 years ago
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Kobotan [32]

Answer:

The bulging eyes of most frogs allow them to see in front, to the sides, and partially behind them. The eyes help push the food down its throat. Eyes positioned atop the head give frogs a field of vision of almost 180 degrees. This peripheral vision helps them spot predators and prey.

Explanation:

4 0
3 years ago
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