Atomic Structure Flashcards
It is the building blocks of atoms; very small (protons, neutrons and electrons)
Subatomic Particles
Contains majority of the mass of atoms (protons + neutrons) additional info: electrons occupy almost all volume of the atom since it is located outside.
Nucleus
Any subatomic particles found inside the nucleus(protons and neutrons)
Nucleon
Nucleus - _____
Atoms - ______
Subatomic particles -______
electrons - ______
Mass
Matter
Atoms
Volume
Can be designated as the number of protons and it is designated as the symbol Z
Atomic Number
Value of Z determines the ______ of the atom.
Identity
It is the total # of protons and neutron, designated as the symbol A
Mass number
If the number of subatomic particles are not equal it is called?
Ion
It is positively charged and loses electrons.
Cation
It is positively charged and loses electron.
Cation
It is a negatively charged and gains electrons
Anion
Atoms lose or gain electrons so that they have an electron configuration similar to that of?
Noble Gases (really stable)
How do you 23 Na?
Sodium 23
It is the average mass of all atoms in an element, weighted average of all isotopes x abundance of isotope.
Atomic mass
______ 2 or more atoms that function as a unit, it can be same or different kinds of atoms.
Molecules