Mod Last Chemistry test study guide

Front

Magnesium (Mg) and Oxygen (O) form an ________ bond.

Back

Ionic

Front

The measurement of 0.0265 g, rounded off to two significant figures, would be __________.

Back

0.027 g

Front

What represents the number of energy levels for each element on the periodic table?

Back

Periods

Front

The octet rule states that most elements want to have _____ valence electrons.

Back

8

Front

Which of the following represents the number of valence electrons on the periodic table?

Back

Groups

Front

What is the definition of an ionic bond?

Back

A chemical bond formed between two ions with opposite charges.

Front

What is the significance of significant figures in measurements?

Back

They indicate the precision of a measurement.

Front

How many valence electrons do elements in Group 1 have?

Back

1

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What do periods on the periodic table indicate?

Back

The number of energy levels in an atom.