The composition of two atomic particles is given below: X Y Proton 8 8 Neutron 8 9 Electron 8 8 What is the mass number of X ?

The mass number is the sum of the numbers of protons and neutrons present in the nucleus of an atom. So, the mass number of X = Number of protons + Number of neutrons = 8 + 8 = 16 . Atoms of different elements which have different atomic numbers, but the same mass number are known as isobars.

The composition of two atomic particles is given below: X Y Proton 8 8 Neutron 8 9 Electron 8 8 What is the mass number of Y ?

The mass number is the sum of the numbers of protons and neutrons present in the nucleus of an atom. So, the mass number of Y = Number of protons + Number of neutrons = 8 + 9 = 17 . Isobars have the same mass number but different atomic numbers.

The composition of two atomic particles is given below X Y Proton 8 8 Neutron 8 9 Electron 8 8 What is the relation between X and Y ?

The mass number is the sum of the numbers of protons and neutrons present in the nucleus of an atom. The atomic number is the number of protons in the nucleus of an atom. Both the elements have the same number of protons, that is 8 . But, the mass number of X is 16 and the mass number of Y is 17 . So, they are isotopes as they have the same atomic number but different mass number.

The composition of two atomic particles is given below: X Y Proton 8 8 Neutron 8 9 Electron 8 8 Which element/elements do they represent?

Both X and Y have the same number of protons or same atomic number, but different mass numbers. Mass number is the sum of the numbers of protons and neutrons present in the nucleus of an atom. Atoms of the same element having the same atomic number, but different mass numbers are known as isotopes. Thus, X and Y are isotopes and represent the same element oxygen, as the atomic number is 8 .