atoms and molecules mass

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Sum of protons (p+) and neutrons (n0) in an atom is called its

Sum of protons (p+) and neutrons (n0) in an atom is called its
  • A. atomic number
  • B. nucleon number
  • C. Avogadro's number
  • D. protonic identity
  • Correct Answer: Option B

A method which is used to find amount of particular substance in a solution is called as

A method which is used to find amount of particular substance in a solution is called as
  • A. Fragmentation
  • B. titration
  • C. electrolysis
  • D. stoichiometry
  • Correct Answer: Option B

Mr is symbol given for

Mr is symbol given for
  • A. relative molecular mass
  • B. relative formula mass
  • C. relative atomic radius
  • D. both A and B
  • Correct Answer: Option D

To determine mass of other compound by comparing it with mass of carbon-12 atoms is

To determine mass of other compound by comparing it with mass of carbon-12 atoms is
  • A. relative molecular mass
  • B. relative atomic mass
  • C. relative molecular radius
  • D. relative atomic radius
  • Correct Answer: Option B

Atoms which have same number of protons but different number of neutrons are called

Atoms which have same number of protons but different number of neutrons are called
  • A. isotopes
  • B. isomers
  • C. spectators
  • D. allotropes
  • Correct Answer: Option A