Answer:
1. B
2. D. the form of a substance changes but not its identity
3. C
4. D
Almost always, the first way in which biology researchers present the results of their latest research is to discuss the results of previous research that they want to build off of.
Run clothes washer only when its full
Answer: 1. Is2 2s2 2p3
2. Nitrogen
Explanation: The number of electron present In C = 6
But an extra electron is added since the charge on C is -1, this therefore makes the total electron 7.
1. By arrangement, the Electronic configuration is therefore;
Ans: 1s2 2s2 2p3
2. It is explained how C has 7 electrons, we can proceed then.
Neutral atom have atomic number of 7.
The element with atomic number of 7 is;
Ans: NITROGEN
