8th Grade Science Review

Front

What element is represented in this Bohr Model?

Back

Lithium

Tags

NGSS.MS-PS1-1

Front

What's a valence electron?

Back

Electrons in the outermost energy level.

Front

What is the relationship between atomic number and protons?

Back

Atomic Number = # of Protons.

Front

What is the relationship between mass number, protons, and neutrons?

Back

Mass Number = # of Protons + # of Neutrons.

Front

Does the equation Mg + Cl2 --> MgCl2 follow the Law of Conservation of Mass?

Back

Yes, it is balanced.

Tags

NGSS.MS-PS1-5

Front

What are the rows on the periodic table called?

Back

Periods.

Front

What are the columns on the periodic table called?

Back

Groups.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an element?

Back

The total number of protons and neutrons in the nucleus.

Front

What is the significance of valence electrons in chemical bonding?

Back

They determine how an atom can bond with other atoms.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2