Science: Valence Electrons

Order the following elements from smallest to largest atomic number

• Na

• Ar

• F

• H

Tags

112.27.b.6.B

The ​ (a)   tells you the number of protons and electron an element has.

• atomic number
• atomic mass
• chemical symbol

Tags

112.27.b.6.B

Label the characteristics of the element

a

b

c

Symbol

Atomic mass

Atomic number

Chemical formula

Tags

112.27.b.6.B

The modern periodic table is arranged by the

• atomic mass
• alphabetically
• element name
• atomic number

Tags

112.27.b.6.B

Beryllium is in group number______.

• Group 2
• Group 3
• Group 4
• Group 7

Tags

112.27.b.6.B

The period for Bromine is ___________.

• 3
• 2
• 4

Tags

112.27.b.6.B

Name group 18 on the periodic table.

• halogens

• alkaline earth metals

• transition metals

• noble gases

Tags

112.27.b.6.B

Name of Na

• Salt

• Sulphur

• Sodium

• Nitrogen

Tags

6.b

Element name Au

• Silver

• Gold

• Magnesium

• August

Tags

112.27.b.6.B

Element name C

• Calcium

• Caesium

• Carbon

• Cobalt

Tags

112.27.b.6.B