Periodic Table Flashcard

Front

What is the mass of an atom with 10 protons and 11 neutrons?

Back

21

Front

How many electrons does an atom with 11 protons and a mass of 20 have?

Back

11

Front

If an atom has an atomic number of 11, how many protons does it have?

Back

11

Front

Which subatomic particle has a negative charge?

Back

Electron

Front

What is the atomic number of an element with 7 protons?

Back

7

Front

What is the definition of atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the definition of mass number?

Back

The total number of protons and neutrons in an atom's nucleus.

Front

What is the charge of a neutron?

Back

Neutral (no charge).

Front

What is the charge of a proton?

Back

Positive charge.

Front

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

Back

They are equal in number.