Chemistry Final Exam Sem. 1 P(1) Dec 2024

Front

What is the center of an atom called?

Back

Nucleus

Front

How many electrons can the 2nd energy level hold?

Back

8

Front

How many electrons are in the first shell of an atom?

Back

2

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the maximum number of electrons in the 1st energy level?

Back

2

Front

What is the maximum number of electrons in the 3rd energy level?

Back

18

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.