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Standard IX

Chemistry

Periods in Modern Periodic Table

Most metallic...

Question

Most metallic element has the following electron arrangement in its atom is :

2, 8, 4

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2, 8, 8

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2, 8, 8, 1

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2, 8, 8, 7

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Solution

The correct option is C 2, 8, 8, 1
Alkali metals are most metallic elements. They have one electron in their valence shell.
2, 8, 8, 1 configuration corresponds to that of an alkali metal.

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Similar questions

Q. The electronic configurations of the elements

X, Y, Z

and

J

are given below. Which element has the highest metallic character?

X = 2, 8, 4

Y = 2, 8, 8

Z = 2, 8, 8, 1

J = 2, 8, 8, 7

Q. Element 'A' has electronic configuration

2, 7,

'B' has configuration

2, 8, 6,

'C' has configuration

2, 8, 8

while 'D' has

2, 8, 7.

Which element will show similar chemical properties?

Q. A dipositive ion has an electronic arrangement

2, 8, 8

. Find out the number of electrons, protons and neutrons in that element if its mass number is

40

The electronic configurations of atoms of three elements A. B and C are (2, 8, 1), (2, 8, 6) and (2, 8, 18, 7) respectively.
Which option classifies the elements A. B and C as metals and non-metals correctly?

An element A atomic number 7 mass number 14

B electronic configuration 2, 8, 8

C electrons 13, neutrons 14

D Protons 18 neutrons 22

E electronic configuration 2, 8, 8, 1

State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

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Most metallic element has the following electron arrangement in its atom is :

The correct option is C 2, 8, 8, 1Alkali metals are most metallic elements. They have one electron in their valence shell. 2, 8, 8, 1 configuration corresponds to that of an alkali metal.

The correct option is C 2, 8, 8, 1
Alkali metals are most metallic elements. They have one electron in their valence shell.
2, 8, 8, 1 configuration corresponds to that of an alkali metal.