Question

Plz I need help so bad .!!! Some isotopes of elements are unstable and decay into other, more stable isotopes over time. For example, it takes 153 years for half of a sample of silicon (Si) atoms with 14 protons, 14 electrons, and 18 neutrons to decay.

What is the name of this specific silicon isotope?

silicon-14
silicon-32
silicon-46
silicon-153

Answer 1

Answer:

See it will be silicon 32, as it's total atomic mass is(18+14)=32

Explanation:

Answer 2

Answer:  A, Silicon-14

Explanation:  I'm built different, I also just got it right on Edgenuity 11/5/21