Definition
Positively charged particles
What are protons?
19
K
39.1
The number of protons
What is 19?
The number above the element letter
What is the atomic number?
These are the 2 parts of an atom
What are protons, neutrons, and electrons?
particles with no charge
What are Neutrons?
11
Na
22.99
The number of electrons
What is 11?
The number that includes the number of protons and neutrons
What is the atomic mass?
What are compounds?
What are electrons?
60
Nd
144.2
Number of neutrons
What is 84?
This also equals the number of protons
electrons are found outside the nucleus on these
What are electron energy levels?
Smallest part of matter that cannot be broken down by ordinary chemical means
76
Os
190.2
the way to find the number of neutrons
What is Subtract 76 from 190?
The atomic number equals this
What are protons?
The nucleus is made up of these
What are valence Electrons?
97
Bk
247
Number of electrons
What is 97?
You subtract the atomic mass from the protons to get this
What is the number of neutrons?
When atoms combine with other atoms of the same element
What are diatomic molecules?