Periodic Table Test Review 2024

Front

What is the modern periodic table organized by?

Back

The modern periodic table organizes elements based on their atomic number, not atomic mass.

Front

What are the three main categories of elements in the periodic table?

Back

Metals, Nonmetals, and Metalloids.

Front

What is an atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, and they are found along the zig-zag line on the periodic table.

Front

What is the significance of the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers.

Front

What is a fictitious element?

Back

A fictitious element is an imaginary element that does not exist in reality but can be used to illustrate concepts in chemistry.

Front

How many electrons does an element with an atomic number of 30 have?

Back

An element with an atomic number of 30 has 30 electrons.

Front

What is the difference between metals and nonmetals?

Back

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

Front

What are the properties of metals?

Back

Metals are good conductors of heat and electricity, have high melting and boiling points, and are malleable and ductile.