The particles that are found in the mucleus of an atom are 1.neutrons 2.electrons only 3.protons and neutrons 4. protons and electrons

Protons and neutrons are found inside the nucleus, electrons are found on the outer rings of the atom.

the answer is protons and neutrons, we find them inside the nucleus (not mucleus) the nucleus is the center of an atom. while electrons are particles that fly around outside the nucleus.

protons are positive while neutrons do not have a charge.

um i think it might be a car?

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o