The noble gases are grouped together in the periodic table. where are the noble gases in the table?
a. the top row
b. the bottom row
c. the far left column
d. the far right column user: which of the following is a common characteristic of a metal?
a. dull
b. brittle
c. poor conductor of heat
d. good conductor of electricity

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next