periodic trends

Question 1

the periodic law

Answer 1

When elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties

Question 2

where do the atomic sizes increase?

Answer 2

down and to the left

Question 3

why are the atomic sizes larger when going down?

Answer 3

higher energy levels = higher orbitals

Question 4

what are the 7 diatomic elements

Answer 4

H
N
F
O
I
Cl
B

Question 5

where is the melting/boiling point the highest?

Answer 5

in the middle

Question 6

what is ionization energy

Answer 6

amount of energy required to completely remove an electron from a gaseous atom

Question 7

where does ionization energy increase

Answer 7

upwards and to the right

Question 8

why is ionization energy opposite to atomic radius?

Answer 8

e- are closer to the nucleus in small atoms so attraction is stronger

Question 9

electronegativity

Answer 9

atom attracts electrons to itself when combined with another atom.

Question 10

where does electronegativity increase?

Answer 10

upwards and to the right