8th grade Periodic table

Front

What does the atomic mass of an element represent?

Back

The atomic mass represents the average mass of an atom of an element, measured in atomic mass units (amu), which accounts for the number of protons and neutrons in the nucleus.

Front

What is the basic building block of matter?

Back

Atoms are the basic building blocks of matter, consisting of protons, neutrons, and electrons.

Front

What period is Bromine located in on the periodic table?

Back

Bromine is located in period 4 of the periodic table.

Front

Which subatomic particle has a negative charge?

Back

The electron is the negatively charged subatomic particle.

Front

What is the atomic number of an element?

Back

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

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

How do you calculate the number of neutrons in an atom?

Back

To calculate the number of neutrons, subtract the atomic number from the mass number (Neutrons = Mass Number - Atomic Number).

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is a substance formed when two or more different types of atoms bond together.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are groups in the periodic table?

Back

Groups are vertical columns in the periodic table that contain elements with similar chemical properties.