History of Chemistry
Early people produced these types of changes even though they didn't understand what happened. For example - extracting metals from ores and making jewelry.
What is the inner part of an atom that contains the proton and the neutron called?
How big would the nucleus be if an atom was enlarged so the electrons were spinning around the stands of a football stadium?
What is anything that takes up space?
Atomic numbers of an atom are the same as the number of what in an atom?
What did people think you could turn iron and lead into?
What particles have a positive charge and are found inside the nucleus?
What unit of measurement is atomic mass measured in?
What was the earliest form of chemistry called?
A proton has the atomic mass of what?
What type of particle holds the protons and neutrons together in the nucleus?
What origin language do the names for elements come from?
A neutron has the atomic mass of what?
Up, Down, Strange, Charm, top and bottom are all names for what type of particle?
Which decade did people first realize that atoms have protons and electrons ?
An electron has a mass of what?
1/1836
What type of particle are quarks held together by?
Some atoms have more ___________, which makes it an isotope and gives it a negative charge.
Electrons