How are the following pairs of atoms related?8X16, 8X17, 18Y40, 20Z40,

Elements 8X16 and 8X17 are isotopes because of a same number of protons.Elements 18Y40 and 20Z40 are isobars because of the same mass number.

Q10 of 63 Page 113

How are the following pairs of atoms related?
₈X¹⁶, ₈X¹⁷, ₁₈Y⁴⁰, ₂₀Z⁴⁰,

Elements ₈X¹⁶ and ₈X¹⁷ are isotopes because of a same number of protons.

Elements ₁₈Y⁴⁰ and ₂₀Z⁴⁰ are isobars because of the same mass number.

If an atom of an element has atomic number = 15 and, mass number = 31, find the number of protons, electrons, neutrons in its atoms.

Why do isotopes of an element have different physical properties?

Why is electron known as a universal particle?

How an element is represented using its mass number and atomic number. Give some examples.

Questions · 63

4. Structure of the atom

1 2 3 4 5 6 7 1 2 3 4 5 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 31 32 33 34 35 1 2 3 4 5 6 7 8