What is the name of group 5a

Why should the scientific method be used to answer a question? a. it provides a way to test an idea without any bias. b. it provides a way to test a hypothesis. c. it provides a way to ensure all hypotheses are proven correct. d. it provides a way to quickly turn a hypothesis into a scientific theory.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration