Question

Use the following key to classify each of the elements below in its elemental form: A....

Use the following key to classify each of the elements below in its elemental form:

A. Discrete atoms ... C. Metallic lattice
B. Molecules ... D. Extended, three-dimensional network
1. Magnesium
2. Nitrogen ...
3. Lithium
4. Potassium ...

Please help, I keep getting these wrong.

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Answer #1

Atoms can be termed as discrete atoms if they are either monoatomic or diatomic molecules. Therefore, nitrogen is classified as discrete atom or molecule as it exists as N2.

A structure that consists of positively charged ions bounded with each other by their electrons present in inner shell and the electrons present in outermost shell are free to move are called metallic lattice.

Group 1 and group 2 metals are generally metallic in nature and form positively charged univalent and divalent ions.

Therefore, magnesium, lithium, and potassium will be classified as metallic lattice.

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