It's the rows. They are periods. (1,2,3,4,5,6,7 - the ones without the letters).
Answer: 1.8 x 10^1 or the scientific e notation is: 1.8e1
Answer:
20 km north that's the answer hope it helped
Internuclear distance can be defined as the distance between the nuclei atoms, i.e.,the distance between the center of nucleus to the outer most shell of an atom.
Chromosomes have genes that determine specific thing about a person (hair color, eye color, how tall or short a person is etc....).
