Coffin- Flashcard on Intro to Atoms and Molecules

Front

What determines the identity of an element?

Back

The number of protons in its nucleus, also known as its atomic number.

Front

What is the primary component of the sun?

Back

Two Hydrogen atoms bonded into Hydrogen gas.

Front

What atom consists of one electron and one proton, and lacks a nucleus?

Back

Hydrogen.

Front

What is a homogeneous mixture?

Back

A mixture where the components are evenly distributed, such as salt dissolved in water.

Front

What defines a diatomic element?

Back

A molecule made of only one type of atom, such as two Hydrogen or two Nitrogen atoms.

Front

What is an atom?

Back

The basic unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is the atomic number?

Back

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

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is a chemical bond?

Back

The force that holds atoms together in a molecule.