periodic trend

which the element has large atomic radius

• Li

• Ne

• C

• B

The atomic radius of group

• Not Effect

• Decrease from up to down

• Stay the same

• Increase from up to down

Which element has smaller atomic radius

• Ra

• Ca

• Be

• Sr

The atomic radius across period

• decrease from left to right

• Increase from left to right

• decrease from right to left

• stay the same

The valence electron of element in group 1 =

• 11

• 3

• 5

• 1

The element in group 16 was in

• Block s

• Block p

• Block f

• Block d

The element in block d is called

• Transition element

• Halogen

• Nobel Gas

• Representative element