Question

Half-life is a measure of the rate of decay of an isotope. (1 point)
true
false
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If two atoms have the same number of protons but different numbers of neutrons, they will have the same ____. (1 point)
half-life
mass number
atomic number
degree of stability
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pretty sure its true...and atomic number...thnks

Answer 1

Q:Half-life is a measure of the rate of decay of an isotope.
A: TRUE

Answer 2

@some_someone

Your first answer was right.

I'm looking at your second answer now.
When we look at elements on the Periodic Table,
we see two different numbers:

Atomic NUMBER
and Atomic MASS.

The ATOMIC NUMBER is the number of PROTONS/ELECTRONS.

The ATOMIC MASS is the number of PROTONS AND NEUTRONS, TOGETHER.

If two atoms have different numbers of NEUTRONS,
they're not going to have the same atomic mass.

Answer 3

THE FIRST ANSWER SHOULDNT BE RIGHT @inyourhead I DONT THINK SO

Answer 4

Half life is the measure of the decay rate of an isotope. That's true.