Atoms and Periodic Table Review

A(n)_________ is a possible answer to a scientific question. If is usually phrased as an "if, then" statement.

• law

• variable

• conclusion

• hypothesis

Protons have a _______ charge

• +1

• -1

• 0

Tags

NGSS.MS-PS1-1

Electrons have a _______ charge

• +1

• -1

• 0

Tags

NGSS.MS-PS2-3

Neutrons have a _______ charge

• +1

• -1

• 0

Choose the 2 subatomic particles that each have a mass of 1 atomic mass unit.

• Proton

• Electron

• Neutron

Where in the atom is a proton located?

• outside the nucleus

• it depends on the type of atom

• inside the nucleus

In a neutral atom, the atomic number can tell you the number of what two subatomic particles?

• Protons

• Neutrons

• Electrons

How many valence electrons does an atom of Oxygen have

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-1

In what period can you find the element Silver?

• 1

• 3

• 5

• 7

How many valence electrons does an atom of Lithium have?

• 1

• 3

• 5

• 7