The periodic table

Question 1

What is the periodic table?

Answer 1

• a table that arranges, organises and displays all known elements

Question 2

When was the periodic table developed and by who

Answer 2

by Mendeleev in the late 1890’s

Question 3

What elements are naturally occuring?

Answer 3

up to uranium (92)

Question 4

What elements have been processed through nuclear reactors?

Answer 4

transuranium elements (elements past uranium)

• all radioactive

Question 5

are groups vertical or horizontal

Answer 5

Vertical

Question 6

what are groups numbered

Answer 6

Numbered 1 - 18

Question 7

how do groups react

Answer 7

React in a similar way

Question 8

what number of valence electrons do groups have

Answer 8

Have the same number of valence electrons

Question 9

do groups have similar or different chemical properties

Answer 9

Have similar chemical properties

Question 10

are periods vertical or horizontal

Answer 10

Horizontal

Question 11

what are periods numbered

Answer 11

Numbered 1 - 7

Question 12

what happens to properties of periods

Answer 12

Properties will increase or decrease along the period

Question 13

electron shells of periods

Answer 13

periods have the same number of electron shells