Question

if we have a sample of silicon (si) atoms that has 14 protons, 14 electrons, and 18 neutrons. what is the name of this specific silicon isotope? o silicon - 14 o silicon - 32 o silicon - 46 o silicon - 153

Explanation:

Step1: Recall isotope naming rule

Isotopes are named by element - mass number. Mass number = protons + neutrons.

Step2: Calculate mass number

Given 14 protons and 18 neutrons. Mass number = 14 + 18 = 32.

Answer:

silicon - 32