Atomic Number and Mass Number

Isobars are atomic species that have the same _____ number, but a different atomic number.

Properties of Isobars: Isobars of an element have the same number of _____ .

Why isobars have different physical properties?

What are the properties of isobars?

If you know the mass number and the atomic number of an atom, how might you calculate its number of neutrons? 

Fill in the missing information in the following table.

What is the main difference among the isotopes of the same element?

Write the atomic number and the symbol of an element which has mass number $32$ and the number of neutrons $16$ in the nucleus.

The atoms of any element have the same atomic number but a different mass number are called -

Which of the following atomic species are isobars?

${}_{90}{}^{231}\mathrm{Z}, {}_{91}{}^{230}\mathrm{Z}, {}_{88}{}^{230}\mathrm{Z}, {}_{90}{}^{233}\mathrm{Z}$

Write the electronic configurations of any one pair of isobar.

Why isobars have different chemical properties?

Define isobar.

Define isotopes.

Write the definition of mass number.

Write the definition of atomic number.

Write the names of three isotopes of hydrogen.

The nucleus of an atom has its mass.

Isobars have different physical and chemical properties.

Give reasons.

 Isotopes of an element have the same atomic numbers.