Answer:
yes, the number of protons makes an atom whatever element it is, and the number of protons cannot be changed, because changing the number of protons would change what element it is. the number of protons in each element is unique.
Explanation:
Answer:
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Explanation:
As given
60 min = 50 gm (1)
then we know half-life mean half amount decay time
so we can write as the half of 200 is 100 gm hence
T 1/2 = 100 (2)
solving these two equation by cross multiplication we will get
T 1/2 = 120 min
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Protons are a cluster in the centre of an atom and electrons are orbiting around the protons
as water is cooled it's density increases until about 4 c then it decreases