Science>Chemistry>Structure of The Atom>Valency

EASY

Earn 100

The valency of cobalt ion is .

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Important Questions on Structure of The Atom

EASY

Science>Chemistry>Structure of The Atom>Valency

Define valency.

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

The pair of valencies exhibited by tin

(Sn)

is

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Science>Chemistry>Structure of The Atom>Valency

Valence electron in

{Cl}^{-}

ions is

EASY

Science>Chemistry>Structure of The Atom>Valency

What is the valency of Iron (II)?

EASY

Science>Chemistry>Structure of The Atom>Valency

An element 'X' has a valency

3

. Write the formula of its oxide.

EASY

Science>Chemistry>Structure of The Atom>Valency

The chemical properties of an atom are determined by its valence electrons.

EASY

Science>Chemistry>Structure of The Atom>Valency

Predict the valency of the following elements: boron (At. No. $5$ )

EASY

Science>Chemistry>Structure of The Atom>Valency

What is the valency of sulphur?

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

An atom with three protons and four neutrons will have a valency of

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

Number of valence electrons

{Cl}^{- 1}

ion is

EASY

Science>Chemistry>Structure of The Atom>Valency

Determine the valency of the following elements whose atomic numbers are given in the parenthesis.

potassium ( $19$ )

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

If

Z is 5

, what would be the valency of the element?

EASY

Science>Chemistry>Structure of The Atom>Valency

The valency of an element with atomic number

10

is _____ (zero/ two/ one).

EASY

Science>Chemistry>Structure of The Atom>Valency

Valency of noble gases is

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Science>Chemistry>Structure of The Atom>Valency

Predict the valency of the following elements: Silicon (At. No.

14

)

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

What is the valency of iron in

{Fe}_{2} O_{3}

?

EASY

Science>Chemistry>Structure of The Atom>Valency

Determine the valency of the following elements whose atomic numbers are given in the parenthesis.
fluorine (

9

)

EASY

Science>Chemistry>Structure of The Atom>Valency

Determine the valency of the following elements whose atomic numbers are given in the parenthesis.

Phosphorus ( $15$ )

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

Why is it that sodium and fluorine are chemically very reactive?

MEDIUM

Science>Chemistry>Structure of The Atom>Valency

The atomic number of an element is

15

. Find the number of valence electrons in its atom. Predict the valency of the element.