The electronic configurations of three elements X, Y and Z are as follows:

X 2, 4

Y 2, 7

Z 2, 1

(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.

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Solution

(a) Elements Y and Z combine to form an ionic compound by transfer of one electron from Z to Y.
(b) Elements X and Y will react to form a covalent compound because atom X can react with 4 atoms of Y to share their one electron.

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Similar questions

The electronic configurations of three elements X, Y, and Z are as follows:
X=2,4

Y=2,7

Z=2,1

(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.

Q. The electronic configurations of three elements A, B and C are as follows:

A	2, 8, 1
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C	2, 4

(a) Which of these element is a metal?
(b) Which of these elements are non-metals?
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Q. The electronic configurations of four elements A, B, C and D are as follows:

A	2, 8, 1
B	2, 8, 7
C	2, 8, 8
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(a) Which of these elements is a metal?
(b) Which of these elements are non-metals?
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Element X has an electronic configuration of (2,8,2) and Element Y has an electronic configuration of (2,6).The compound formed by X and Y is covalent.

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The electronic configurations of three elements X, Y and Z are as follows: X 2, 4 Y 2, 7 Z 2, 1 (a) Which two elements will combine to form an ionic compound? (b) Which two elements will react to form a covalent compound? Give reasons for your choice.

(a) Elements Y and Z combine to form an ionic compound by transfer of one electron from Z to Y. (b) Elements X and Y will react to form a covalent compound because atom X can react with 4 atoms of Y to share their one electron.

The electronic configurations of three elements X, Y and Z are as follows:

X 2, 4

Y 2, 7

Z 2, 1

(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.

(a) Elements Y and Z combine to form an ionic compound by transfer of one electron from Z to Y.
(b) Elements X and Y will react to form a covalent compound because atom X can react with 4 atoms of Y to share their one electron.