Isotopes and Ions

Mg⁺²​ (a)  

Cl^-​ (b)  

Ag⁺³​ (c)  

• cation
• anion

How many electrons are in a neutral atom of carbon?

How many electrons would be in a Na⁺ ion?

Tags

NGSS.HS-PS1-1

Two atoms are considered to be isotopes if they have the same number of protons and

• different number of neutrons.

• different number of electrons.

• same number of neutrons.

• same number of electrons.

Which subatomic particles are found in the nucleus?

• protons and neutrons

• protons and electrons

• electrons and neutrons

• all of them

Tags

NGSS.HS-PS1-8

A Cl atom forms a Cl^- ion by

• gaining a proton.

• gaining an electron.

• losing a proton.

• losing an electron.

The silver ion, Ag⁺ has ____ protons than electrons.

• more

• less

Match the subatomic particle to its charge.

• +1

• proton

• 0

• electron

• -1

• neutron

Which isotope has 4 neutrons?

Tags

NGSS.MS-PS1-1

If an atom loses electrons, the charge will be positive.

• true

• false

Tags

NGSS.HS-PS1-2