Final Review-Chemistry Semester 1 (Regular)

Front

What is the atomic number of an atom?

Back

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

Front

What are subatomic particles with a positive charge?

Back

Protons are subatomic particles that carry a positive charge.

Front

How many electrons does Silicon (Si) contain?

Back

Silicon (Si) contains 14 electrons.

Front

What does the Pauli Exclusion Principle state?

Back

The Pauli Exclusion Principle states that an orbital can only hold a maximum of 2 electrons, each with opposite spins.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the components are evenly distributed and the mixture looks the same throughout.

Front

What is a proton?

Back

A proton is a positively charged subatomic particle found in the nucleus of an atom.

Front

What is the definition of an electron?

Back

An electron is a negatively charged subatomic particle that orbits the nucleus of an atom.

Front

What is the definition of a neutron?

Back

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

Front

What is the significance of the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, reflecting the number of protons and neutrons in the nucleus.

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.