Why are ions formed?

• To make our lives difficult

• Because atoms want 8 valence electrons

• Because atoms have the same number of protons and electrons

• Because atoms gained neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Cations are...

• Positive

• Negative

• Neutral

• Purring

Tags

NGSS.MS-PS1-1

What is the ionic symbol for a phosphorus atom?

• P^-3

• P⁺³

• P^-2

• P⁺²

Tags

NGSS.MS-PS1-1

What is the ionic symbol for Selenium?

• Se^-2

• Se⁺²

• Se^-3

• Se⁺³

What is the ionic symbol for a Caesium atom?

• Cs⁺

• Cs^-

• Cs⁺²

• Cs^-2

Which of the following elements GAINS 1 electron in order to attain an octet?

• sodium

• calcium

• helium

• boron

• chlorine

Tags

NGSS.HS-PS1-1

Which of the following elements LOSES 2 electrons in order to attain an octet?

• lithium

• magnesium

• helium

• sulfur

• bromine

Which of the following elements LOSES 3 electrons in order to attain an octet?

• nitrogen

• lithium

• aluminum

• oxygen

• iodine

Each of the following elements will LOSE ELECTRONS in order to attain an octet EXCEPT _______

• iodine

• magnesium

• potassium

• copper

• strontium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Cl is more reactive than P because it is closer to being like a noble gas. It only has to gain 1 electron.

• True

• False