What is a chemical element?
Q: What is a chemical element?
A: A chemical element is a substance that is made up of only one type of atom.
Q: What are atoms composed of?
A: Atoms are made up of protons, neutrons, and electrons.
Q: What determines the number of protons in an atom?
A: The number of protons in an atom is called the atomic number.
Q: How many different elements are known to modern chemistry?
A: 118 different chemical elements are known to modern chemistry.
Q: How many natural elements can be found in nature?
A: 92 of these elements can be found in nature.
Q: When was the last natural element discovered?
A: The last natural element discovered was uranium, in 1789.
Q: How does the periodic table help us understand properties between elements?
A: Where the elements are in the table tells us about their properties relative to the other elements.
