12/24: Basic Chemistry Flashcard for Honors Biology Version 2

Front

What is the formula mass of C4H10?

Back

56

Front

How many protons are in the nucleus of a carbon atom?

Back

6

Front

How many atoms are there in CaSO4?

Back

6

Front

What are the two main parts of an atom?

Back

Nucleus and electron orbital(s)

Front

What are valence electrons?

Back

Electrons on the outermost orbital (energy level)

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

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.

Front

What is the role of neutrons in an atom?

Back

Neutrons help stabilize the nucleus and contribute to the atomic mass.

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.

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.