Trends Of The Periodic Table

Question 1

Electronegativity decreases:

Answer 1

Down a group

Question 2

Electronegativity is:

Answer 2

Measure of an elements ability to attract an electron

Question 3

Metallic characteristics decrease:

Answer 3

Across a period

Question 4

Metallic characteristics increase:

Answer 4

Down a group

Question 5

Metallic characteristics are:

Answer 5

The ease at which an atom loses electrons

Question 6

Oxidising strength increases:

Answer 6

Across a period

Question 7

Oxidising strength decreases:

Answer 7

Down a group

Question 8

Oxidising strength is:

Answer 8

How readily an element gains electrons

Question 9

Reducing strength increases:

Answer 9

Down a group

Question 10

Reducing strength decreases:

Answer 10

Across a period

Question 11

Reducing strength is:

Answer 11

How readily an element loses electrons

Question 12

Ionisation energy is:

Answer 12

The energy required to remove an electron from a gaseous atom

Question 13

The unit for ionisation energy is:

Answer 13

kj/mol

Question 14

What are the ionisation energies?

Answer 14

The energies required to remove the outermost electrons from the atom. Eg the 1st ionisation energy Li(g)➡️Li+(g)+e-(520kj/mol)

Question 15

Ionisation energy decreases:

Answer 15

Down a group

Question 16

Ionisation energy increases:

Answer 16

Across a period

Question 17

Ionic size: metals

Answer 17

They lose electrons and form cations, they are smaller than the atoms they come from, cations have an increase in attraction between the electrons and the nucleus

Question 18

Ionic size: non metals

Answer 18

Gain electrons and form anions, bigger than the atom they come from, anions have a lesser attraction between the electrons and nucleus

Question 19

Atomic size decreases:

Answer 19

Across a period

Question 20

Atomic size increases:

Answer 20

Down a group

Question 21

Atomic size is:

Answer 21

The size of an atom due to its electrons.

Question 22

Atomic size: when there are more electrons:

Answer 22

The atomic size decreases as the electrons are more strongly attracted to the nucleus

Question 23

Atomic size: when there are less electrons:

Answer 23

The atomic size increases as the electrons are loosely attracted to the nucleus

Question 24

Reactivity across a period:

Answer 24

Lowest in the middle and increases vertically either way

Question 25

Reactivity down a group:

Answer 25

Increases

Question 26

Electronegativity increases:

Answer 26

Across a period