Science

______ always gives the identify of the atom.

• Protons

• Neutrons

• Electrons

Elements in the same period/row have the same--

• # of valence electrons

• # of protons

• # of energy shells

• # of neutrons

How many periods are on the Periodic Table?

• 6

• 7

• 8

• 9

The mass of the atom is located ---

• in the Nucleus

• in the Electron Cloud

• protons only

• neutrons only

Which element is NOT in Period 3 on the Periodic Table?

• Na

• Ar

• P

• Ne

These two subatomic particles contribute to the mass of the atom.

• Protons and Electrons

• Protons and Neutrons

• Electrons and Neutrons

The volume of the atom is located in the --

• in the Nucleus

• in the Electron Cloud

The atoms of a certain element each contain 18 protons and 8 valence electrons.

What is the element's name?

• Argon

• Krypton

• Neon

• Sodium

Tags

NGSS.MS-PS1-1

How many protons will the element in Group 7A, Period 4 have?

• 9

• 16

• 34

• 35

How many electrons will the element in Group 3A, Period 4 have?

• 31

• 13

• 11

• 54