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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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lement X, which has a valence shell configuration of n s 2 n p 4 , was isolated in a laboratory. Which of the following statements is(are) true concerning element X?

Element X has chemical properties similar to those of the halogens.

Element X has six valence electrons.

When element X is reacted with calcium, the compound formed would most likely have the formula Ca 2 X .

Element X needs to gain two electrons to attain a noble gas electron configuration.

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Interpretation Introduction

Interpretation:

Among the given statements, the statements which are true are to be stated.

Concept Introduction:

The distribution of the electrons that exists in the atomic orbital of an atom is collectively known as electronic configuration. The description of every electron in an orbital is given by the electronic configuration of that atom.

The electrons that are present in the outermost shell of an atom are known as valence electrons. The outermost shell of an atom is known as valence shell. The valence electrons are more loosely held than the electrons which are closer to the nucleus.

The elements of the same group in the periodic table generally have similar properties because they have same number of valence electrons.

Explanation

Reason for correct option:

b. The valence shell electronic configuration of the given element is given as,

ns2np4

The valence electrons of the element are therefore, 2+4=6

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