Question

An atom of silicon has a mass number of 28 and an atomic number of 14. How can you determine how many protons and how many neutrons are in this atom?

Answer 1

The atomic number is the number of protons in an atom. To find the number of neutrons, you take the number of protons (atomic number) and subtract it from the mas number.

Answer 2

mass*

Answer 3

in an atom of silicon there are 14 protons and 28-14 = 14 neutrons

Answer 4

2. Electron A falls from energy level X to energy level Y and releases blue light. Electron B falls from energy level Y to energy level Z and releases red light. Which transition, from X to Y or from Y to Z, has a greater energy difference? Explain your answer and how you arrived at it. Use a diagram of the electromagnetic spectrum. pls dont goggle the answer answer it from your mind or what you know :) thx