periodic table Flashcards
What is an element
An **element **is made up of only the one type of atom and can be found on the periodic table
gold is an exxample of an element
what is the symbol for Hydrogen
H
Hydrogen is first on the periodic table and has one proton and one electron and is a gas
What is the symbol for helium
He
Helium is a gas and has 2 protons and 2 electrons
What is the symbol for lithium
Li
Lithium is a metal and has three protons and 3 electrons
What is the symbol for Beryllium
Beryllium is a metal and has 4 protons and 4 electrons
What is the symbol for Boron
B
Boron is a semi metal and has 5 protons and 5 electrons
What is an atom made up of ?
Atoms are made up of protons, neutrons and electrons
Protons and nuetrons are found in the nucleus and electrons orbit on the outside