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Metalloids

The element w...

Question

The element with configuration $1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}$ would be :

A

a metal

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B

a non-metal

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C

a inert gas

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D

a metalloid

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Solution

The correct option is A a metal
Since, it has two valence electrons, it is a part of alkaline earth metals, therefore, it is a metal.

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Similar questions

The element whose electronic configuration is $1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}$ is a/an?

Q. The element whose electronic configuration is

1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}

Q. The electronic configuration of an element is

1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}

. The oxidation number of the element in its compounds can be:

Q. Radhika carried out tests on four elements W, X, Y and Z. The results are shown in the table below.

Element	Solid at room temperature	Conducts electricity	Can be hammered into sheets
W	No	No	No
X	Yes	No	No
Y	Yes	Yes	No
Z	Yes	Yes	Yes

From these results, which of the four elements could she say is a metal?
(a) W
(b) X
(c) Y
(d) Z

Q. Select the correct answer:
(i) Which of the following electronic structures is of a metal?
(a) 2, 8, 8
(b) 2,7
(c) 2, 8, 2
(d) 2, 8, 4

(ii) Atomic radii of fluorine and neon in angstrom unit are
(a) 0.72, 13.6
(b) 1.60, 1.60
(c) 0.72, 0.72
(d) none of these

(iii) Configuration of an element is 2, 8, 1. Which of the following statement is true?
(a) Valency of element is 7
(b) Element is diatomic
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(d) Element forms basic oxide

(iv) Which of the following element has highest electronegativity?
(a) F
(b) H
(c) Ne
(d) Na

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