Atoms and Nuclei (KVPY Stream-SA (Class 11) Physics): Questions 6 - 8 of 15

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 242 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 6

» Atoms and Nuclei » Isobars

MCQ▾

Question

Consider the following statements. The correct statement regarding an isobar is,

(i) Isobars are chemically different but physically same.

(ii) Isobars are atoms of different elements.

(iii) Numbers of electrons in isobars are different

(iv) The atomic numbers are same in isobars.

Select any one of following,

Choices

Choice (4) Response

a.

(ii) and (iv) are correct

b.

(i), (ii) and (iii) are correct

c.

(iii) and (iv) are correct

d.

(i) and (iii) are correct

Question number: 7

» Atoms and Nuclei » Isotopes

Appeared in Year: 2014

MCQ▾

Question

Consider the following statements. The correct statement regarding an isotope is,

(i) All isotopes of an element have the same number of neutrons

(ii) Only one isotope of an element can be stable and non-radioactive

(iii) All elements have isotopes

(iv) All isotopes of Carbon can form chemical compounds with Oxygen-16

Select any one of following,

Choices

Choice (4) Response

a.

(ii) and (iv) are correct

b.

(i), (ii) and (iii) are correct

c.

(iii) and (iv) are correct

d.

(i) and (iii) are correct

Question number: 8

» Atoms and Nuclei » Alpha-Particle Scattering Experiment

Appeared in Year: 2014

MCQ▾

Question

In 1911, the physicist Ernest Rutherford discovered that atoms have a tiny, dense nucleus by shooting positively charged particles at a very thin gold foil. A key physical property, which lead Rutherford to use gold that it was.

Choices

Choice (4) Response

a.

Electrically conducting

b.

Shiny

c.

reactive

d.

Highly malleable

Sign In