Halogens

What is the group number for halogens?

• 17

• 18

• 3

• 13

The elements in the halogens group are not very reactive

• True

• False

Tags

NGSS.MS-PS1-2

Halogens often appear as brightly colored gases

• True

• False

Assign the color to a halogen: fluorine ______, chlorine ______, bromine ______

What is the rarest element on Earth?

• Astatine

• Gold

• Cesium

• Tennessine

Tags

NGSS.MS-PS1-1

Fluorine was/is used in/for

• Weapons

• Strengthening the teeth

• Cleaning products

• Gardening

Tags

NGSS.MS-PS1-3

Minerals can be deposited in the dessert through evaporation

• True

• False

An atom or group of atoms that has become charged by gaining or losing one or more electrons is called an ___

Tags

NGSS.MS-PS1-1

A force that holds together two or more atoms is called ________ ____

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What does atom need to be stable?

• Full house of electrons

• More electrons than protons

Tags

NGSS.MS-PS1-1