Which of the following factors contributes to the relatively greater atomic size of the higher atomic number elements within a particular family of the periodic table? a. greater number of energy levels b. larger nuclei
c. greater number of protons d. smaller number of valence electrons

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.