Copy of Periodic Trends Analysis PDF

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Summary

chemistry work 10th grade level...

Description

Period

1

2

3

Atomic # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Atomic Radius (pm) 53 31 167 112 87 67 56 48 42 38 190 145 118 111 98 88 79 71

Group 1

Group 18 53

31

167

38

190

71

Questions to answer after making graph Predictions: What do you think is gonna happen to the atomic What happens to the size of atoms (atomic radius) as you go down a group in the periodic table?

the atoms get bigger Does this match your prediction? no it does not Why do you think the size follows the trend that it does? I think the numbers will go up as we go across and lower as we go the atoms grow as the elements change

What happens to the size of atoms as you go across a row from left to right on the periodic table? Did they get smaller Why do you think the size follows the trend that it does? i think it does this because they have more electrons?

Period

1

2

3

Atomic # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Ionization Energy (kJ) 1,312.00 2,372.30 520.2 899.5 800.6 1,086.50 1,402.30 1,313.90 1,681.00 2,080.70 495.8 737.7 577.5 786.5 1,011.80 999.6 1,251.20 1,250.60

Group 1

Group 18

1,312.00

2,372.30

520.2

2,080.70

495.8

1,250.60

Questions to answer after making graph Predictions: What do you think is gonna happen to the ionization energy?

What happens to the ionization energy as you go down a group in the periodic table? - it went down Does this match your prediction? yes it did

I think that the energy will increase as we go from left to right and lower as we going down a group

Why do you think the ionization energy follows the trend that it does? - because we are taking away electrons What happens to the size of atoms as you go across a row from left to right on the periodic table? D - it increases Why do you think the size follows the trend that it does - i think it does that because of nucular char

Period

1

2

3

Atomic # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Electronegativity 2.2 0 0.98 1.57 2.04 2.55 3.04 3.44 3.98 0 0.93 1.31 1.61 1.9 2.19 2.58 3.16 0

Predictions: What do you think is gonna happen to the electronagativity?

Group 1

Group 18

2.2

0

0.98

0

0.93

0

Questions to answer after making graph What happens to the electronegativity as you go down a group in the periodic table? the charge decreases Does this match your prediction? yes it does Why do you think the size follows the trend that it does?

- the charge is gonna go up when you go from side to side and decrease when we go down a group. - because its growing more in mass?

What happens to the electronegativity as you go across a row from left to right on the periodic table? It increases Why do you think the electronegativity follows the trend that it does? - i think this happens because the charge is increasing....