What Are Valence Electrons?

What are valence electrons?

One Line Answer

Valence electrons: The number of electrons present in the valence shell is known as valence electrons.

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Chapter 4: Atomic Structure and Chemical Bonding - Exercise 4 (C) [Page 66]

Chapter 4 Atomic Structure and Chemical Bonding
Exercise 4 (C) | Q 2.3 | Page 66

The subatomic particle called electron was discovered by :

The atom of an element X has 7 electrons in its M shell.
Is it a metal or a non-metal?

What are cathode rays? How are these rays formed?

What are inert elements?

Choose the correct option

The number of valence electrons in O^2- is :

An atom X has three electrons more than the noble gas configuration. What type of ion will it form?

Choose the correct option:

The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :

If electrons are getting added to en element Y; then

Is Y getting oxidized or reduced?

Explain the following:

Atoms combine by transfer and sharing of an electron(s).

Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in to discovery of