an atom that has 18 protons, 18 neutrons and 20 neutrons. This atom has mass number of 38
mass number is calculated as number of protons + number on neutrons
therefore the mass number of the atom = 18+20= 38
Since the atom has a electronic configuration of 2.8.8,the atom cannot be negatively or positively charged because it is stable.
The atomic number of the atom is 18 since atomic number is equal to number of protons
Your answer is C. its level of dissolved minerals ~A
Answer:
MARK AS THE BRAINLIEST ANSWER
Explanation:
BRAINLIEST
Nitrogen, oxegyn, and water are nonmetals in the atmosphere and combinations are essential for life on earth
