Define mass number of an atom?

The mass number of an atom is 31. The M shell of this atom contains 5 electrons. What is the atomic number of this atom?

The mass number of an atom is 17 Atomic. number is 8 What is the number of neutrons present in. it?

The mass number of an atom is 31. The M shell of this atom contains 5 electrons. Draw the Bohr model of the atom.

The mass number of an atom is 31. The M shell of this atom contains 5 electrons. How many neutrons does this atom have?

The mass number of an atom is 31 . The M shell. of this atom contains 5 electron. A)What is the atomic number of this atom?.B)How many neutrons does this atom have?.C)Write the electronic configuration.

The mass number of an atom is 32. There are 6 elec¬trons in the 'M' shell. Draw the Bothh model of the atom.

The mass number of an atom is 31. The M shell of this atom contains 5 electrons. Write the electronic configuration.

The mass number of an atom is 32. There are 6 elec¬trons in the 'M' shell. What is the number of neutrons?

The mass number of an atom is 32. There are 6 elec¬trons in the 'M' shell. Write the electron configuration of this element.

In a radioactive series a nucleus X distintegrates into nucleus Y by emitting two alpha and two beta particles. IF m and n are the mass number and atomic number of the nucleus X, then the mass number and atomic number of the nucleus Y respectively are