Periodic Trends

Question 1

Click the button that shows the correct relationship of the electron affinities of the elements bromine and chlorine.

Revolt · Accepted Answer

Chlorine’s electron affinity value is more negative than the electron affinity value of bromine.

Question 2

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus.

Revolt · Accepted Answer

Phosphorus’ electron affinity value is more negative than the electron affinity value of sodium.

Question 3

Use the periodic table to explore the electronegativities of elements from Period 3 and Group 17. Fill in the missing values in the table so you can compare the electronegativities of the elements. After the table is filled in, compare the values in each column. A = ⇒ 3.16 B = C =

Revolt · Accepted Answer

Part 2: 1.31; Part 3: 0.93

Question 4

As you move from left to right across the periodic table, the size of atomic radii .

Revolt · Accepted Answer

decreases

Question 5

As you move from left to right across the periodic table, electronegativity .

Revolt · Accepted Answer

increases

Question 6

As you move from top to bottom within a group, the first ionization energy .

Revolt · Accepted Answer

decreases

Periodic Trends Answers

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