How many electrons are in potassium

19

Explanation:

If you look at the periodic table, you should be able to calculate the number of electrons. The number of electrons is equal to the number of protons in an atom. The number of protons is equal to the atomic number.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.