Electronegativity and Periodic Trends

Electronegativity
1. Ability of an atom to atract an electron
2. Fluorine
  1. Highest electronegativity
3. Halogens
4. Sodium, a metelectronegativeal, is not
5. Nonmetals
6. Increases as you go up the periodic table
7. Noble gases don´t have electronegativity
8. The one with higher positive charge, is more electronegative
9. +need for electrons to be neutral: +electronegativity
10. Francium
  1. Less electronegativity
11. Tells how much it wants an electron
Electropositive
1. Gives electrons
2. Metals
H: 2.2 Li: 0.98 C: 2.55 O:3.44 N: 3.04 F: 3.98 K: 0.82 Ca: 1... S: 2.58 P: 2.19 Cl: 3.16 I: 2.66 Br: 2.96
Bonding
1. Covalent share electrons
  1. Non polar covalent
    1. Equal sharing
    2. Maximum difference is 0.499
    3. Cl2- H2- F2
  2. Polar covalent
    1. Unequal sharing
    2. NH 3- H2O
    3. Difference between 0.5-1.6
    4. Only nonmetals
2. Ionic
  1. Complete transfer
  2. NaCl- MgCl2
  3. More than 2.0
  4. Between 1.6 and 2 and metal
Br: 2.96 Cl: 3.16 N:3.04 O: 3.44 S: 2.58 O: 3.44 P: 2.19 S:2.58 Si: 1.90 N: 3.04 Ba: 0.89 Si: 1.90 N: 3.04 K: 0.82

Resumen del Recurso

	Creado por Gabriel Hernández hace más de 5 años