Atom Parts
I am positively charged
What is a proton?
The number of protons in the nucleus of an element
What is the atomic number?
Mendeleev's periodic table has stayed the same over time. True or False?
How elements are arranged in the periodic table
What is by increasing atomic number?
Anything that takes up space and has mass
What is matter?
I have a neutral charge
What is a neutron?
What is the periodic table?
More recent models show electrons here
What is the cloud?
The rows in a periodic table
What are periods?
The basic unit of matter
I have a negative charge
What is an electron?
The one or two letter abbreviation for an element
What is a chemical symbol?
Who is Mendeleev?
The columns in a periodic table
What are groups?
Substances made up of only one type of matter
I contain protons and neutrons
What is the nucleus?
The average mass of all the isotopes of an element
What is atomic mass?
This made Bohr's atom model unique
What is electrons moving in orbits around the nucleus?
The element represented by the chemical symbol He
What is Helium?
What is an electron?
You can find the electrons here.
What is the electron cloud or surrounding the nucleus?
Types of atoms of a chemical element with the same number of protons but different numbers of neutrons (aka different atomic masses)
What is an isotope?
Scientist who figured out there was a nucleus
Who is Rutherford?
The three classes of elements that the colors in the table represent
What are metals, metalloids, and nonmetals?
An atom that has an uneven number of protons and electrons
What is an ion?