Subatomic Particles 23

Front

What charge is present on Electrons?

Back

Negative

Front

How many electrons are in an electrically neutral atom of element with atomic number 35?

Back

35

Front

What charge is present on Protons?

Back

Positive

Front

Which Subatomic Particles Are Found in the Nucleus?

Back

Protons & Neutrons

Front

How many neutrons are in the atom of Potassium (K)?

Back

20

Front

What is the mass of a Proton?

Back

Approximately 1 atomic mass unit (amu)

Front

What is the mass of a Neutron?

Back

Approximately 1 atomic mass unit (amu)

Front

What is the mass of an Electron?

Back

Approximately 1/1836 of a Proton's mass

Front

What is the role of Neutrons in an atom?

Back

Neutrons help stabilize the nucleus by reducing repulsion between Protons.

Front

What is the atomic number of an element?

Back

The number of Protons in the nucleus of an atom.