Define the following terms.

Valency 

Important Questions on Structure of The Atom

EASY

Science>Chemistry>Structure of The Atom>Valency

 Define valency.

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Science>Chemistry>Structure of The Atom>Valency

What type of electronic configuration corresponds to chemical non-reactivity of elements?

EASY

Science>Chemistry>Structure of The Atom>Valency

Name two elements, which have octet structure.

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Science>Chemistry>Structure of The Atom>Valency

The noble gas having $2$ valence electrons is:

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Science>Chemistry>Structure of The Atom>Valency

With the exception of helium, all noble gases have in their valence shell

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Science>Chemistry>Structure of The Atom>Valency

What is understood by the following statement? The valency of noble gas is zero.

HARD

Science>Chemistry>Structure of The Atom>Valency

Which element will be more reactive- the element whose atomic number is 18 or the one whose atomic number is 19? Give reasons.

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

How will you find the valency of chlorine? 

EASY

Science>Chemistry>Structure of The Atom>Valency

Valence electrons are the electrons present in the:

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Science>Chemistry>Structure of The Atom>Valency

The valency of chlorine $\left({}_{17}{}^{35}\mathrm{Cl}\right)$ which is a non-metal is:

EASY

Science>Chemistry>Structure of The Atom>Valency

The general name of elements having $8$ valence electrons is:

EASY

Science>Chemistry>Structure of The Atom>Valency

Helium atom has 2 electrons in its valence shell but its valency is not 2. Explain.

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Science>Chemistry>Structure of The Atom>Valency

Each element tends to complete _____ electrons in its outermost shell is:

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Science>Chemistry>Structure of The Atom>Valency

When an atom changes into an ion, it acquires the stable electronic configuration of:

EASY

Science>Chemistry>Structure of The Atom>Valency

The atomic number of an element is $14$. State the number of valence electrons in its atom. What is the valency of the element?

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Science>Chemistry>Structure of The Atom>Valency

The valency of metal aluminium $\left({}_{13}{}^{27}\mathrm{Al}\right)$ is:

EASY

Science>Chemistry>Structure of The Atom>Valency

How many valence electrons are present in the element of third period and third group?

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

How will you find the valency of sulphur?

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

How will you find the valency of magnesium? 

EASY

Science>Chemistry>Structure of The Atom>Valency

Maximum number of electrons that outermost shell can accommodate is: