What does the periodic table tell us about the elements? - OCR 21C

1

In what order did Mendeleev arrange the elements in his periodic table?

2

In what order is the modern periodic table arranged?

3

What name is given to a vertical column in the periodic table?

4

Where are non-metals found in the periodic table?

5

What is the electron arrangement of oxygen which has atomic number 16?

6

In what group is an atom with electron arrangement 2.8.1?

7

What is an unusual physical property of a group 1 metal?

8

What is the word equation for the reaction of sodium with water?

9

What colour are chlorine, bromine and iodine when they are in the gas state?

10

Which salt will bromine water react with?