Unit 1 Investigating Atoms and Periodic Table Review

A nucleus of an atom contains what two parts?

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

Tags

NGSS.HS-PS1-8

Electron in the outermost energy level are called?

• Valence Electron

• Valence Proton

• Valence Neutron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Elements in the same _________ have the same number of valence electrons.

• Period

• Group

How many neutrons does Chlorine (Cl) with an atomic number of 17 and an atomic mass of 35.

• 17

• 18

• 19

Tags

NGSS.MS-PS1-1

If an atom has an atomic mass of 11 and contains 5 electrons, its atomic number would be______

• 11

• 5

• 6

Tags

NGSS.MS-PS1-1

What is the Valence Electron of Neon (Ne)?

• 1

• 5

• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The atomic number of an element is the number of _______ it has.

• protons

• neutrons

• electrons

• protons and neutrons

Tags

NGSS.MS-PS1-1

The mass number of an element is the amount of _________ it has.

• protons

• protons and neutrons

• electrons

• neutrons

Which term describes Neon?

• metal

• metalloid

• transition metal

• nonmetal

The periodic table is organized into columns called _______ and rows called ______.

• groups and periods

• periods and groups

• categories and periods

• categories and groups