aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Chemical Bonding and Molecular Structure
  • Mass number of atom is expressed by ___________.
Multiple choice

Mass number of atom is expressed by ___________.

  1. atomic number

  2. no.of electrons + no. of protons

  3. no.of protons + no.of neutrons

  4. none of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

mass no. = no.of protons + no.of neutrons

Keep practicing — related questions

  • Mass number is the sum of ________ and ________ present in an atom.
  • The atomic number of which of the following elements represents a metal?
  • Which of the following pairs of atomic numbers represents the elements in the same group?
  • The modern periodic table has elements arranged in increasing atomic numbers. It has ___________vertical co...
  • Directions: Which of the given options best represents the information in the given reading passage? Choose...
  • Coordination number of atoms in BCC crystal lattice is
  • To which period does an element with atomic number 13 belong?
  • The periodic property that increases with increasing atomic number within a family is ________.
Play the full quiz 🎤 Practise this topic out loud

Practice this topic

  • Atomic Structure and Mass (308 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy