Loading...
Atomic number-Gr9
Quiz by REENA GOYAL
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
the number of protons in an atom is called its__________________
the sum of protons and neutrons in an atom is called ________________________
Mass no - atomic no =___________________
the mass of ________________________ is negligible.
atoms of the same element will always have same atomic number