Chemistry science quiz 16

This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?

120

Which of the following is estimated by the radio carbon dating?

Age of the fossils

Purity of the metals

Both (A) and (B)

None

Correct! Wrong!

The mass number of an atom is:

Number of neutrons in the nucleus

Number of protons in the nucleus

Both (a) & (b)

Number of nucleons in the nucleus

Correct! Wrong!

The number of isotopes in the hydrogen:

None

Correct! Wrong!

Which isotope is used through the radioactive age estimation technique to obtain (determine) the age of rocks?

Carbon isotope

Thorium isotope

Plutonium isotope

Uranium isotope

Correct! Wrong!

How many charges alpha-rays consist of?

Unit positive charge

Unit negative charge

Two unit positive charges

None

Correct! Wrong!

Which of the following is not a radioactive element?

Francium

Titanium

Both (a) & (b)

Zirconium

Correct! Wrong!

The radio isotope used to control the disease like blood cancer (Leukaemia) is?

Iodine-131

Phosphorus-32

Both (a) & (b)

Cobalt-60

Correct! Wrong!

What is the radioactive isotope of hydrogen is called?

Rotium

Deuterium

Tritium

Number of neutrons in the nucleus

Correct! Wrong!

Chemistry science quiz 16

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