Answer:
Explanation:
Ionic compounds are electrically neutral because the charges of the cations and anions that make up the compound cancel each other out. In the case of salt for example, sodium has a charge of positive one, and chloride has a charge of negative one. Together, they neutralize the compound.
Answer:
In the given case, the atomic number of the given atom is 15, hence its nucleus contains 15 protons. The number of protons and electrons are the same in atom and that is what keeps it neutral. In the second case, the atomic number is 20. Hence, the atom will contain a total of 20 protons in its nucleus.
Explanation:
There are 30 inches in 2.5 just know that a foot is 12 inches so 12 times 2.5 is 30
Yea, i think it's a shopping mall
Nobody specifically made the periodic table but it was first thought of by Dmitri Mendeleev in 1869.
