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Lady_Fox [76]
3 years ago
6

many radioactive atoms that have large masses undergo radioactive decay by releasing a particle that is identical to a helium-4

nucleus. what changes in the original atom are expected as a result of this natural phenomenon? the atomic number and the mass number will decrease. the atomic number and the mass number will increase. the atomic number will increase, and the mass number will decrease. the atomic number will decrease, and the mass number will increase.
Biology
2 answers:
igomit [66]3 years ago
6 0
The answer is <span>the atomic number and the mass number will decrease.
</span>
When atoms undergo radioactive decay, alpha particles release.

Alpha particles consist of two protons and two neutrons. So, mass is 4 (2+2) amu^{4} _2 \alpha<span>.
When an atom of emits an alpha particle, its atomic number will be reduced by 2 and a mass number will be reduced by 4:</span>

 ^{A}_ZX →  ^{A-4}_{Z-2}X + ^{4}_{2}  \alpha<span>

</span>
a_sh-v [17]3 years ago
4 0

The answer to your question is option A.

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Which of the following pairs of terms is mismatched?
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Answer:

Which of the following pairs of terms is mismatched?

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3 years ago
Let's consider a scenario in which the resting membrane potential changes from −70 mv to +70 mv, but the concentrations of all i
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<span>Let's consider a scenario in which the resting membrane potential changes from −70 mV to +70 mV, but the concentrations of all ions in the intracellular and extracellular fluids are unchanged. Predict how this change in membrane potential affects the movement of Na+. The electrical gradient for Na+ would tend to move Na+ Outside the cell (extracellular) while the chemical gradient for Na+ would tend to move Na+ Inside the cell (intracellular).

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3 years ago
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mark as brainliest if i helped. good luck :) !!
7 0
3 years ago
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Answer:

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ANSWER THIS FOR ME PLZ BRAINLY GANG :D
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When used as directed with other sun protection measures, broad spectrum sunscreen with an SPF of 15 or higher helps prevent sunburn and reduces the risk of early skin aging and skin cancer (melanoma and squamous cell carcinomas) associated with UV radiation. hope this helped lower the answers

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