Why are ethics important when considering experiments?
o
a. it is important that people are not harmed for the sake of science.
o
b. scientists would not be able to get funding if their experiments
were not ethical.
o
c. a general sense of ethics ensures that everyone is aware of what's
right and what's wrong.
d. the scientific results would not be believable if they were obtained
unethically.

C is the correct answer

Ethics in science are more complex than most people would think. Scientists must consider many ethical issues, including honesty, transparency, objectivity, safety and harms, and how research impacts the world. It's a lot to think about, but ethics are an important consideration for any research scientist.

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

he would use the colour black