CHE 105 Ch. 4 Flashcards
What molecular shape does a central atom from Group 3 have?
Trigonal Planar.
What molecular shape does a central atom from Group 4 have?
Tetrahedral.
What molecular shape does a central atom from Group 5 have?
Trigonal Pyramidal.
What molecular shape does a central atom from group 6 have?
Bent
When two elements with similar electronegativities bond like hydrogen(2.20 electronegativity) and Carbon(2.55) they form what kind of bonds?
Nonpolar covalent bonds
When two elements with different electronegativities bond like hydrogen(2.20) and Fluorine(5..) what kind of bonds do they form?
Polar covalent bonds.
What is the most electronegative element?
Fluorine.
What group on the periodic table has no electronegativity
Noble gases group
Define ionic bond
Forms when atoms are held together by the attraction between opposite charges. 
Define the octet rule
When atoms prefer eight electrons in their outer shell. 
Define a covalent bond
Forms when atoms share electrons in order to satisfy the octet rule.
Ions of opposite charge attract each other and form what kind of bonds?
Ionic bonding
When two elements with similar Electronegativities bond like hydrogen and carbon they form what kind of bonds
Nonpolar covalent bonds.
When 2 elements with different electronegativities bond like hydrogen and fluorine they form what kind of bonds?
Polar covalent bonds
Polyatomic ion name for carbonate
Polyatomic ion name for hydroxide.
Polyatomic ion name for phosphate.
Polyatomic ion name for sulfate.
