Periodic Table & Elements

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Q1.Total known elements:

A. 92 B. 100 C. 118 D. 150

Q2.Periodic table by:

A. Dalton B. Mendeleev C. Bohr D. Rutherford

Q3.Lightest element:

A. Helium B. Hydrogen C. Lithium D. Carbon

Q4.Symbol of Gold:

A. Go B. Gd C. Au D. Ag

Q5.Symbol of Sodium:

A. So B. Sd C. Na D. No

Q6.Symbol of Iron:

A. Ir B. In C. Fe D. I

Q7.Most abundant metal in crust:

A. Iron B. Copper C. Aluminium D. Gold

Q8.Liquid metal:

A. Gold B. Silver C. Mercury D. Tin

Q9.Liquid non-metal:

A. Mercury B. Bromine C. Iodine D. Phosphorus

Q10.Best conductor of electricity:

A. Copper B. Gold C. Silver D. Aluminium

Q11.Most ductile metal:

A. Silver B. Copper C. Gold D. Aluminium

Q12.Noble gases are:

A. Very reactive B. Inert/unreactive C. Liquid at room temp D. Radioactive

Q13.Atomic number equals:

A. Number of neutrons B. Number of protons C. Number of electrons + neutrons D. Mass number

Q14.Graphite and Diamond are allotropes of:

A. Silicon B. Carbon C. Aluminium D. Iron

Q15.Heaviest natural element:

A. Gold B. Lead C. Uranium D. Platinum

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