2A The atoms and redox

Question 1

Atomic number

Answer 1

No. protons in the nucleus of an atom

Question 2

Mass number

Answer 2

No. protons and. neutrons in the nucleus of an atom

Question 3

Ion

Answer 3

Charged particle

Question 4

Isotope

Answer 4

An atom of the same element with the same number protons and electrons, however a different number of neutrons with the same properties.

Question 5

Relative isotopic mass

Answer 5

The mass of an atom of an isotope compared with 1/12 th of the mass of one carbon-12 atom

Question 6

Why carbon-12

Answer 6

Exactly 12 amu and is pure + unreactive

Question 7

Relative atomic mass

Answer 7

weighted mean mass of an atom of an element compared with 1/12 th of the mass of one carbon-12 atom

Question 8

How to calculate relative atomic mass

Answer 8

[abundance x mass] + [abundance x mass] +[abu…] divided by the total abundance

Question 9

How to work out relative abundance on a mass spectograph

Answer 9

[total height (cm) ÷ No. isotopes] x 100

Question 10

Relative molecular mass

Answer 10

the weighted mean mass of a molecule compared with 1/12th of one atom of carbon-12

Question 11

Relative formula mass

Answer 11

the weighted mean mass of a formula unit compared with 1/12th of one atom of carbon-12

Question 12

1st ionisation energy

Answer 12

The amount of energy required to remove 1 electron from each atomic one mole of gaseous. atoms to form 1+ ions
Potassium: K(g) —-> K+(g) + e-

Question 13

3 factors which effect 1st ionisation energy

Answer 13

1. No. protons (Atomic number)
2. The number of inner shells (Shielding)
3. Distance from the nucleus to the outer shell
   always talk about the nuclear. attraction.

Question 14

Successive ionisation energy

Answer 14

finish.

Question 15

s orbital

Answer 15

2 electrons

Question 16

p orbital

Answer 16

6 electrons

Question 17

d orbital

Answer 17

10 electrons

Question 18

f orbital

Answer 18

14 electrons

Question 19

sub shell fill order

Answer 19

1s2s2p3s3p4s3d4p4d4f

Question 20

Most energy orbital

Least energy orbital

Answer 20

f block
d block
p block
s block

Question 21

Which way are electrons lost?

Answer 21

Electrons are lost from the outer orbital regardless of energy level

Question 22

Gr 1and Gr 2 and He orbital block

Answer 22

s block

Question 23

Gr 3-8 orbital block

Answer 23

p block

Question 24

transition metals not in G3-7 orbital block

Answer 24

d block

Question 25

Random bottom one orbital block

Answer 25

f block

Question 26

Exception to sub shell fill order

Answer 26

Copper : 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^1

Chromium: 1s^2 2s^2 2p^6 3s^2 3p^6 3d^5 4s^1

Question 27

Oxidation

Answer 27

The loss of electrons

Question 28

Reduction

Answer 28

The gain of electrons

Question 29

Oxidising agent

Answer 29

Removes electrons from other substances

Question 30

Reducing agent

Answer 30

Adds electrons to other substances

Question 31

Oxidation rules

Answer 31

1. Uncombined atoms have an ON of 0
2. Gr.1 elements have an ON of 1+
3. Gr.2 elements have an ON of 2+
4. Flourine has an ON of 1-
5. Oxygen has an ON of 2-, except in peroxides its 1-
6. Hydrogen has an ON of 1+ except in hydrides its 1-

Question 32

Oxidation in redox

Answer 32

If the oxidation number is increased, oxidation has taken place

Question 33

Reduction in redox

Answer 33

If the oxidation number is decreased, reduction has taken place

Question 34

mnumonic for learnign fill order

Answer 34

special
performance
during
finale