Periodic Properties

Question 1

Mendeleev and Meyer

Answer 1

Came up with table

Question 2

Atomic radius

Answer 2

Decreases left to right
Increases up and down
Up and down takes priority over left to right

Question 3

Size of ions

Answer 3

Cations are smaller

Anions are larger

Question 4

Isoelectronic series

Answer 4

Ions ha ether same number of electrons plus same electron configuration

Ionic size decreased with an increasing nuclear charge
10 electrons

Question 5

Ionizations energy

Answer 5

Minimum energy required to remove an electron

The higher the i.e. The more difficult to remove

Takes more energy each time an electron is removed

Increases across and decreases down

Question 6

Electron affinity

Answer 6

Energy accompanying the addition of an electron to a gaseous atom

Typically exothermic

Increases across

Question 7

Electronegativity

Answer 7

Ability of an atom in a molecule to attract electrons to itself
Increases left to right decreases
up and down
Closer to F greater the value

Question 8

Metals

Answer 8

Compound with transitions metals have colors to them
Li-red or pink Na-orange K-purple
Metals form cations