The person who first discovered chemistry
Robert Boyle
The total mass of one atom of any given element is called ___.
The earliest form of chemistry was called _______.
Alchemy
The smallest pieces of matter are called __________.
atoms
People thought you could turn iron and lead into what?
Which two states of matter are involved in sublimation?
Solid and gas
Why does hydrogen have an atomic number of 1?
because it only has one proton
The creator of the periodic table
Dmitri Mendeleev
A neutron has the atomic mass of what?
1
What eventually happens to a gas if its pressure increases?
The gas condenses
Some atoms have more ___________, which makes it an isotope and gives it a negative charge.
Electrons
Who made the Plum Pudding model of the atom?
JJ Thomson
Most of the mass of an atom is located here.
nucleus
An alpha particle is also known as
a helium nucleus
What element has a number of 56?
Barium