Parts of an Atom Flashcards
1
Q
Protons
A
-protons are positively charged particles in the nucleus
-the number of protons determines the element of the atom
2
Q
Neutrons
A
-neutrons are neutral particles in the nucleus
-they have a charge of 0 and they have a a mass of a proton
3
Q
Electrons
A
-negatively charged particles that orbit the nucleus in the electron cloud
-the chemical properties of the atom is greatly determined by its electron
-in neutral atoms, the number of electrons equals the number of protons
4
Q
Chemical Symbol
A
-use two numbers to symbolize the number of protons and neutrons
-the mass # (A) is equal to the number of protons plus the number of neutrons
-the atomic (Z) is equal to the number of protons