Scientific Method, Rules, & Lab Safety Test

Front

What is a proton?

Back

A proton is a subatomic particle with a positive charge, found in the nucleus of an atom.

Front

Who proposed the Bohr model of the atom?

Back

Niels Bohr proposed a model with electrons moving in specific layers around the nucleus.

Front

What is the chemical symbol for Argon?

Back

The chemical symbol for Argon is Ar.

Front

How many valence electrons does Lead (Pb) have?

Back

Lead (Pb) has 4 valence electrons.

Front

What is the atomic number of Sodium?

Back

The atomic number of Sodium is 11.

Front

What is the definition of a neutron?

Back

A neutron is a subatomic particle with no charge, found in the nucleus of an atom.

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number and properties, helping to predict their behavior.

Front

What is the definition of an element?

Back

An element is a pure substance that cannot be broken down into simpler substances and is made of atoms with the same number of protons.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.