Chemistry Basics

Front

What is the atomic number of Potassium?

Back

19

Front

How many electrons does an atom of Krypton have?

Back

36

Front

What is the mass number of an element with 18 protons, 18 electrons, and 19 neutrons?

Back

37

Front

What are the building blocks of matter?

Back

Atoms

Front

What is defined as anything that takes up space and has mass?

Back

Matter

Front

What is the definition of an atom?

Back

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

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 only one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is a proton?

Back

A positively charged particle found in the nucleus of an atom.