Structure Of Atoms


5 Questions MCQ Test LEARNING IS FUN | Structure Of Atoms


Description
This mock test of Structure Of Atoms for Class 9 helps you for every Class 9 entrance exam. This contains 5 Multiple Choice Questions for Class 9 Structure Of Atoms (mcq) to study with solutions a complete question bank. The solved questions answers in this Structure Of Atoms quiz give you a good mix of easy questions and tough questions. Class 9 students definitely take this Structure Of Atoms exercise for a better result in the exam. You can find other Structure Of Atoms extra questions, long questions & short questions for Class 9 on EduRev as well by searching above.
QUESTION: 1

What will be the correct electronic configuration of an Mg ion?

Solution:

As the configuration of ion is asked, Mg forms ion Mg2+ after losing 2 electrons and so its electronic configuration is 2, 8.

QUESTION: 2

Plum Pudding model was stated by?

Solution:
QUESTION: 3

Bohr proposed the?

Solution:
QUESTION: 4

A radioactive isotope that is used to cure cancer?

Solution:

It emmits gamma rays which destroys cancer cells

QUESTION: 5

What are isobars?

Solution:

Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number (or number of protons) but have the same mass number

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