Which particle determines the identity of an element?

• electron

• proton

• neutron

Which element has atomic number of 10?

• Flourine

• Helium

• Silicon

• Neon

On the Periodic Table, the mass number of Zinc is...

• 65

• 64

• 63

• 62

What does the mass number tell you?

• the number of protons

• the combined number of protons and neutrons

• the number of neutrons

• the combined number of protons and electrons

What information does the atomic number provide?

• the number of protons

• the combined number of protons and neutrons

• the number of neutrons

• the combined number of protons and electrons

Tags

NGSS.MS-PS1-1

An element has the mass number 14 and atomic number 7. Determine the number of neutrons.

• 7

• 2

• 14

• 21

Tags

NGSS.MS-PS1-1

What is the mass number of this atom?

• 9
• 10
• 19
• 27

Tags

NGSS.MS-PS1-1

Which particle changes the electrical charge of an atom.

• electron

• proton

• neutron

If an atom has an equal number of protons and electrons, then it...

• has an equal number of neutrons

• has a Mass Number of zero

• is unstable

• is a neutral atom

A neutral atom has 5 protons and 7 neutrons. How many electrons does it have?

• 5

• 7

• 2

• 12

Tags

NGSS.MS-PS1-1