The Atom (Leaving Cert Engineering): Flashcards
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15 cards from this deck
Atom definition
Atom definition
Basic building block of all matter and chemistry
Three subatomic particles in an atom
Three subatomic particles in an atom
Protons, neutrons, electrons
Charge of a proton
Charge of a proton
Positive
Charge of a neutron
Charge of a neutron
Neutral (no charge)
Charge of an electron
Charge of an electron
Negative
Particles in the nucleus
Particles in the nucleus
Protons and neutrons
Atomic number ()
Atomic number ()
Number of protons in the nucleus
Atomic number determines
Atomic number determines
What element the atom is
Mass number equals
Mass number equals
Protons + neutrons
Isotopes definition
Isotopes definition
Same protons, different neutrons
Electron mass vs proton/neutron mass
Electron mass vs proton/neutron mass
1,836 times lighter
Max electrons in 1st, 2nd, 3rd shells
Max electrons in 1st, 2nd, 3rd shells
2, 8, 18
Valence shell
Valence shell
Outermost electron shell of an atom
Three types of atomic bonding
Three types of atomic bonding
Electron transfer, sharing, pooling
Ion definition
Ion definition
Atom that gained or lost electrons