Help me Analyze: What is the purpose of a hypothesis?

Define: What are the results of scientific investigations?

Point Out What can change a scientific theory?

Consider How do scientific theories and laws compare?

Summarize Why is it important to question information in the media?

Identify What are some sources of bias?

Review the terms and their definitions in the Mini Glossary. Write a sentence that describes the importance of critical thinking.

List the three branches of science

Discuss what types of questions cannot be answered scientifically and why.

answer; i believe that the correct answer is (a) potassium(k)

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.