Use the drop-down menus to answer the questions about fronts and weather maps. Cold fronts appear on weather maps in areas of
.large temperature and air pressure increase.
large temperature and air pressure decrease.
large temperature increase and large air pressure decrease.

Warm fronts appear on weather maps in areas of
.temperature and air pressure decrease.
temperature increase and air pressure decrease.
temperature and air pressure increase.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

i think it is true since you can test the answer and can use observations to complete it.