Answer:
The highest energy level number (1 through 7) for the electrons in an atom corresponds to the period (or row) in the periodic table to which that atom belongs. Because there are 7 periods in the table, there are 7 energy levels. For example, hydrogen (H) is in the first period, so it has only one energy level.
Answer:
The chemical reaction between the citric acid and sodium bicarbonate
Explanation:
A heterozygous is represented by 1 capital letter and 1 lowercase in most instances.
