Periodic Table Assessment

Front

What is the symbol for the element with 26 protons?

Back

Fe

Front

Where do valence electrons reside in an atom?

Back

In the outermost energy level of the atom.

Front

What is a group (or family) in the periodic table?

Back

Elements with similar properties.

Front

How many protons are in an atom with an atomic number of 11?

Back

11 protons.

Front

Which elements belong to the same period: Na and Cl or Na and K?

Back

Na and Cl belong to the same period.

Front

What does the atomic number of an element represent?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What are periods in the periodic table?

Back

Horizontal rows of elements that have the same number of electron shells.

Front

What is the significance of valence electrons in chemical bonding?

Back

They determine how an atom can bond with other atoms.

Front

What is the difference between metals and nonmetals in the periodic table?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.