There are two electrons in the outermost orbit of the magnesium atom. Hence, the valency of magnesium is ______. - Science

There are two electrons in the outermost orbit of the magnesium atom. Hence, the valency of magnesium is ______.

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There are two electrons in the outermost orbit of the magnesium atom. Hence, the valency of magnesium is 2.

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Chapter 4: Atomic Structure - Evaluation [Page 51]

Chapter 4 Atomic Structure
Evaluation | Q II. 5. | Page 51

The sub-atomic particle which revolves around the nucleus is ______.

The atomic number of an atom is the ______.

The nucleus has _____ and _____

State true or false. If false, correct the statement.

The electrons are positively charged.

State true or false. If false, correct the statement.

The nucleus is surrounded by protons.

Assertion: The number of protons or the number of neutrons is known as atomic number.

Reason: The mass number is the sum of protons and neutrons.

What are the characteristics of proton?

The term nucleons refer to ______.

What is the mass of a proton?

The value of series limit in the case of paschen series is ______.