Atomic Structure

Front

What is the charge of a neutron?

Back

Neutrons have no charge.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Tags

NGSS.MS-PS2-3

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in an element.

Front

How many protons does Chlorine have?

Back

Chlorine has 17 protons.

Front

How many electrons does Chlorine have?

Back

Chlorine has 17 electrons.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the mass number of an atom?

Back

The mass number is the sum of protons and neutrons in the nucleus.

Front

How many neutrons does Chlorine have?

Back

Chlorine has 18 neutrons.

Tags

NGSS.MS-PS1-1

Front

What is the formula to calculate the number of neutrons in an atom?

Back

Number of neutrons = Mass number - Atomic number.

Front

What is the significance of the atomic number in the periodic table?

Back

The atomic number determines the position of an element in the periodic table.