PHYSIO ch 2
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Unit of matter.
Made of protons (+ charged)
Neutrons (NO charge)
Whats found in Central part of Nucleus
Where are electrons found?
Outer part of atom
Same # of protons but different # of neutrons.
- Hydrogen (1P: 0Neutrons)
- Deuterium (1P: 1 Neutron)
- Tritium (1P: 2 Neutrons)
Charged atom or molecule
Change # of electrons
Create + or - charged ions
Change # of Neutrons
Create new Isotope
Change # of Protons
Create new element
Transfer of electrond between elements
Sharing of electrons between elements;
Stronger than Ionic
EX: 1H2, and O2
Two types of covalent Bonds
Atoms share electrons equally or symmetrically.
Polar Covalent Bonds
- Atoms share e-unequally
- Ex H2O Oxygen attracts electrons better than Hydrogen.
Polar molecules have opposite charges on opposite ends.
The power to attract electrons;
Oxygen is a very electronegative atom.
Occurs between polar molecules (like water)
Indicated by DOTTED lines instead od solid
WEAKEST of 3 types of bonding
Carbon Based Life
Made up mostly of water & Carbon molecules
Carbon capable of forming 4 covalent bonds.
Can bond w many elements/ Itself.
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