2nd 9 Weeks Test Review

Front

How many electrons should Nitrogen have around its Lewis dot model?

Back

5

Front

What is the formula for the ionic compound formed by Chromium and Chlorine?

Back

chromium(III) chloride

Front

What is meant by the term 'sea of electrons'?

Back

It's what we call all the free floating electrons in a metal.

Front

What is the correct molecular structure for carbon dioxide?

Back

Linear (O=C=O) with double bonds.

Front

Classify the following molecule: H2O.

Back

polar

Front

What is the atomic number of Nitrogen?

Back

7

Front

Define ionic bond.

Back

A chemical bond formed between two ions with opposite charges.

Front

What is the difference between polar and nonpolar molecules?

Back

Polar molecules have a net dipole moment due to their shape and electronegativity differences, while nonpolar molecules do not.

Front

What is the significance of the octet rule?

Back

Atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is a covalent bond?

Back

A chemical bond that involves the sharing of electron pairs between atoms.