Front

What is the measure mainly of the nuclear particles?

Back

Atomic Mass is the measure of the total number of protons and neutrons in an atom's nucleus.

Front

How many electrons does Radon have if its atomic number is 86?

Back

Radon has 86 electrons, equal to its atomic number.

Front

What type of mixture can you not see all of the parts?

Back

A homogeneous mixture is one where the components are not visibly distinguishable.

Front

What are the vertical columns on the periodic table called?

Back

The vertical columns on the periodic table are called groups.

Front

Which of the following represents a compound: C3, O2, CH3CHO, H2?

Back

CH3CHO represents a compound, as it contains more than one type of atom.

Front

What are protons?

Back

Protons are positively charged subatomic particles found in the nucleus of an atom.

Front

What is the 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 are neutrons?

Back

Neutrons are neutral subatomic particles found in the nucleus of an atom, contributing to atomic mass.

Front

What is an electron?

Back

Electrons are negatively charged subatomic particles that orbit the nucleus of an atom.

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 made of two or more different types of atoms chemically bonded together.