An element A has the electronic configuration 2, 8, 18, 8, 1. The sign on the simple ion of element A will be negative.

True

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False

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Solution

The correct option is B
False

Sign is positive. A is a metal because it has one electron in its valence shell. Element A will lose one electron to attain stable configuration.

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Similar questions

X

2, 8, 18, 8, 1

X .

Element X has electronic configuration 2, 8, 18, 8, 1. Without identifying X,

(a) predict the sign and charge on a simple ion of X.

(b) write if X will be an oxidising agent or a reducing agent. Why ?

(2, 8, 8, 1)

An element X has an electronic configuration of 2, 8, 18, 8, 1. In this case, X will be ___ .

(a) Write the electronic configuration of element X.

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(e) What could element X be?

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