Subatomic Particles

Front

What is the atomic number of an atom?

Back

The atomic number is equal to the number of protons in the atom's nucleus.

Front

What is the charge of an atom with 3 protons, 4 neutrons, and 2 electrons?

Back

The atom will have a +1 charge.

Front

Which subatomic particle is positively charged?

Back

The proton is the subatomic particle that has a positive charge.

Front

How many electrons does a Cu²⁺ ion have?

Back

A Cu²⁺ ion has 27 electrons.

Front

What is the symbol for an atom with 9 protons and 10 neutrons?

Back

The symbol is 19F (Fluorine-19).

Front

What are the three main types of subatomic particles?

Back

The three main types of subatomic particles are protons, neutrons, and electrons.

Tags

NGSS.HS-PS1-8

Front

What is the charge of a neutron?

Back

A neutron has no charge; it is neutral.

Front

How do you determine the number of neutrons in an atom?

Back

The number of neutrons can be determined by subtracting the atomic number from the atomic mass.

Front

What is the mass of a proton compared to an electron?

Back

A proton is approximately 1836 times more massive than an electron.

Front

What is the significance of the atomic mass unit (amu)?

Back

The atomic mass unit (amu) is a standard unit of mass that quantifies mass on an atomic or molecular scale.

Tags

NGSS.HS-PS1-7