TNReady 7th Grade Science Atomic Structure 7.PS1.1

Front

What makes up the nucleus of an atom?

Back

Protons and neutrons.

Front

What are the particles in an atom that are negatively charged?

Back

Electrons.

Front

Which atom has more protons, neutrons, and electrons: helium or lithium?

Back

Lithium has more protons, neutrons, and electrons.

Front

Where are electrons located within an atom?

Back

Electrons are in motion outside the nucleus.

Front

What does it mean that neutrons are neutral?

Back

Neutrons do not have a charge.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What is the charge of neutrons?

Back

Neutrons have no charge.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the role of electrons in chemical reactions?

Back

Electrons are involved in chemical reactions, particularly in bonding.

Front

How do you determine the mass number of an atom?

Back

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