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Standard XII

Chemistry

Schrodinger Equation

Match the ato...

Question

Match the atomic numbers 4,8,10,15 and 19 with each of the following:

(a) Element which can form trivalent ion.
(b) An element with 4 shells.
(c) Element with 6 valence electrons.
(d) Element which does not form ion.

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Solution

Atomic number

8 (c) Element with 6 valence electrons

10 (d) Element which does not form ion

15 (a) Element which can form trivalent ion

19 (b) Element with four shells

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Similar questions

Name or state the following :

(a) An element having valency zero.

(b) Metal with valency one.

(d) Elements having same mass number but different atomic number.

(e) Bond formed by transfer of electron(s).

(f) Ion formed by gain of electron(s).

Q. The atom of an element X has 7 electrons in its M shell.

(a) Write the electronic configuration of element X.

(b) What is the atomic number of element X?

(d) What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.

(e) What could element X be?

Name the following :

(a) The element which does not contain any neutron m its nucleus.

(b) An element having valency 'zero'.

(d) Two atoms having the same number of protons and electrons but different number of neutrons.

(e) The shell closest to the nucleus of an atom.

Elements X, Y and Z have atomic numbers 6, 9 and 12 respectively. Which one :

(a) forms an anion (b) forms a cation

An element A has 4 valence electrons in its atom whereas element B has only one valence electrons its atom. The compound formed by A and B does not conduct electricity. What is the nature of chemical bond in the compound formed ? Give its electron dot structure.

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Schrodinger Equation

Standard XII Chemistry

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Atomic number
8	(c) Element with 6 valence electrons
10	(d) Element which does not form ion
15	(a) Element which can form trivalent ion
19	(b) Element with four shells

Match the atomic numbers 4,8,10,15 and 19 with each of the following:​ ​ (a) Element which can form trivalent ion.​ (b) An element with 4 shells.​ (c) Element with 6 valence electrons.​ (d) Element which does not form ion. ​

Atomic number 8 (c) Element with 6 valence electrons 10 (d) Element which does not form ion 15 (a) Element which can form trivalent ion 19 (b) Element with four shells

Match the atomic numbers 4,8,10,15 and 19 with each of the following:

(a) Element which can form trivalent ion.
(b) An element with 4 shells.
(c) Element with 6 valence electrons.
(d) Element which does not form ion.

Atomic number

8 (c) Element with 6 valence electrons

10 (d) Element which does not form ion

15 (a) Element which can form trivalent ion

19 (b) Element with four shells