The particles are atoms, his theory is the atomic theory
Answer:
my answer is b oti d I am not sure
Answer: i think its A diatomic compound..
Explanation: hope i helped! sorry if im wrong!
Calcium is in group 2A because it has two valence electrons and an oxidation state of 2+. Hope this is accurate & helpful! Enjoy your evening.
Answer:
A type of an atom which has a different number of neutrons but the same atomic number, therefore making it the same element. This atom would still have the same properties as well. (Ex: Vanadium-51 is an isotope of Vanadium that has 51 neutrons but still has 23 protons, as its atomic number is 23.)
