Atomic trends *Important*

Question 1

Why does electron affinity increase left to right

Answer 1

The protons in the atom causes the atom to desire electrons more, and the greater the desire for electrons, the greater the energy change when that occurs, also because halogens for example have 7 electrons and therefore want an extra e the most(must say)

Question 2

why does electron affinity increase going upwards

Answer 2

the electrons added to energy levels become closer to the nucleus, thus a stronger attraction between the nucleus and its electrons.

also they want electrons more and the greater the desire, the greater the change in energy

Question 3

why does ionization energy increase from going left to right

Answer 3

increasing nuclear charge, which results in the outermost electron being more strongly bound to the nucleus

Question 4

why does ionization energy increase from going upwards

Answer 4

decrease in atomic radius causes increase in the attraction between nucleus and electrons

Question 5

what does atomic radius increase going downwards

Answer 5

more orbits and therefore larger radius

Question 6

what does atomic radius increase going right to left

Answer 6

this is because as you go from the RIGHT side of the periodic table which is the most electro negative causing a greater pull making smaller radius, to the left, the radius gets bigger due to weaker pull

Question 7

periodic trends are linked to what (question from soloman)

Answer 7

the number of electrons in an atom and the way they are arranged

Question 8

Briefly describe the three particles found in the atom.

Answer 8

1. proton, positively charged, found in nucleus, relative mass of 1
   Neutron, no charge, found in nucleus, relative mass of 1
   Electron, negatively charged, orbits nucleus, relative mass of 0

Question 9

Compare carbon and nitrogen in terms of electronegativity, ionization energy, and electron affinity? (soloman question)

Answer 9

Nitrogen has the higher electronegativity, ionization energy, and electron affinity. Its nucleus has one extra proton, and therefore its electrons are pulled in tighter, resulting in a smaller molecule. This gives it more attraction to surrounding electrons (increased electronegativity and electron affinity), and an increased hold on its outer electrons (increased ionization energy).