Select the isotopes and isobars from the following: (i) Z 18 40 (ii) Y 17 37 (iii) X 17 35 (iv) K 19 40

Isotopes are the elements having same atomic number but different mass number. Therefore, the isotopes are X 17 35 and Y 17 37 . Isobars are the elements having same mass number but different atomic numbers. Therefore, the isobars are Z 18 40 and K 19 40 .

Select the isotopes and isobars from the following: (i) Z 18 40 (ii) Y 17 37 (iii) X 17 35 (iv) K 19 40

Isotopes are the elements having same atomic number but different mass number. Therefore, the isotopes are X 17 35 and Y 17 37 . Isobars are the elements having same mass number but different atomic numbers. Therefore, the isobars are Z 18 40 and K 19 40 .

E M B I B E

Secondary Chemistry>Chapter 4 - Structure of Atom>Problems for Proficiency>Q 8

HARD

9th CBSE

IMPORTANT

Earn 100

Select the isotopes and isobars from the following:

(i) ${}_{18}^{40}Z$

(ii) ${}_{17}^{37}Y$

(iii) ${}_{17}^{35}X$

(iv) ${}_{19}^{40}K$

Important Questions on Structure of Atom

EASY

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 4 - Structure of Atom>Problems for Proficiency>Q 9

Isotopes of an element have similar chemical properties because their _____are similar.

EASY

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 4 - Structure of Atom>Problems for Proficiency>Q 9

Fill in the blanks with correct word given in the bracket.
Isotopes have same atomic numbers because number of _____ in their nuclei is same. (protons / neutrons)

EASY

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 4 - Structure of Atom>Problems for Proficiency>Q 9

Isotopes of an element are electrically neutral because they contain equal numbers of protons and _____.

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 4 - Structure of Atom>Problems for Proficiency>Q 9

In the species