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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
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(b) 1.60, 1.60
(c) 0.72, 0.72
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