Flashcards
What is an atom?
A particle of matter that defines chemical element
What is a molecule?
A group of atoms chemically joined together
What do compounds do?
When the elements come together they react with each other and form chemical bonds that are difficult to break. They contain one or more element chemically combined
How many elements exist?
The periodic table has 118 elements
What are electrons?
A subatomic particle with a charge of negative one
How do protons work
Protons are atoms that have a 1+ charge
Are neutrons positive, negative or neutral?
Neutral
The periodic table has 181 elements, True or False?
False - 118
Are compounds and molecules similar?
Molecules are cross of atoms joined together, if it’s the same atom it’s an element, if different it’s a compound
What atoms makes life on earth possible?
Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur
