Do You Know Any Jokes About Sodium?
By Mattie N.
Protons are positively charged and are found in the nucleus. They weigh 1 amu.
Neutrons are negatively charged and are found in the nucleus of the atom. They weigh 1 amu.
Electrons are negatively charged and are located in the electron cloud or orbital. They weigh about 1 amu.
Valence electrons are the outermost orbital of electrons. They are responsible for the bonding. To find the number of valence electrons you look at the groups and the numbers on top of the groups. Ex: 2A, 6A.
Calculating P E N
How To Find the Number of Protons
The number of protons are the same number as the atomic number.
How to Find the Number of Electrons
The number of electrons is the same as the atomic number, which is also the same number as the number of protons.
How to Find the Number of Neutrons
To find the number of neutrons, you round the atomic mass and subtract the atomic number from it.