Science Questions

1) The most common element in the universe

Hydrogen

2) The most common element on the earth’s crust

Aluminium

3) The most abundant metal element present in our body

Calcium

4) The element common to all acids

Hydrogen

5) The densest element

Osmium

6) The lightest element

Hydrogen

7) The hardest metal

Chromium

8) The radio active gaseous element

Francium

9) Most electropositive element is

Francium

10) The heaviest known hallide is

Halogen Astatine

11) The element which shows highest electron affinity is

Chlorine

12) The most common element present in earth’s crust

Oxygen

13) The most chemically active element

Fluorine

14) The 99th element named in honour of Albert Einstein is

Einsteinium

15) The 101st element named in honour of Mendeleev is

Mendelevium

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