The term coordinate number in ionic crystals refers to the number of oppositely charged ions surrounding a particular ion, I hope this was able to help you.
Answer:
Transactional theory of development
Explanation:
You do it before a lab so as to prevent contamination of the materials. You might have things on your hands that might contaminate the experiment and the research. You do it after because you don't want to have things from your experiments on your hands because that can be extremely dangerous.
Answer:
D- Nuclear membrane disapears
Explanation:
For some people it can cause stress like say your overweight and your doctor say you need to lose weight or your going to die that can stress someone out if they can’t exercise that well
