Atoms Flashcards
The smallest unit of an element to that maintains the properties of that element:
Atom
An atom that has the same number of protons but different number of neutrons:
Isotope
An atom that has an unequal number of protons and electrons:
Ion
An atom with more protons than electrons is called:
Positive Ion
An atom with more Electrons than protons is called:
Negative Ion
The three parts of an atom are classified by their:
Charge, Location, and Mass
The parts of an atom are:
Proton, Neutron, and Electron
Charge and location of a proton?
Positive and inside the nucleus
Charge and location of a neutron?
No charge or neutral and inside the nucleus.
Charge and location of a electron?
Negative and outside the nucleus.
It takes about ___ electrons to equal the mass of 1 proton
2000
Atomic Mass Unit
the SI unit to express the mass of a proton
Mass of both protons and neutrons?
1 AMU
What particle has the least mass?
Electron
How did Democtiris describe atoms?
A single material with one shape and size
Central region of the atom:
Nucleus
Region where electrons are most likely to be found:
Electron Cloud
The number of protons in the nucleus of an atom:
Atomic Number
The sum of protons and neutrons in an atom:
Mass Number
The lowest possible energy level:
Ground State
Possible energies that electrons can have:
Energy Levels
Visual model of the most likely locations for electrons in an atom:
Orbital
Where N’s change to P’s and E’s (force)
Weak force
How E’s arrange in orbit:
Electron Configuration
