A) ion B) Element C) molecule D) compound
A) plasma, proton, neutron B) proton, neutron, electron C) element, neutron, D) proton, plasma, molecule
A) proton B) plasma C) electron D) neutron
A) electron B) element C) proton D) neutron
A) positive B) none C) negative D) both
A) electron and proton B) proton and plasma C) neutron and electron D) proton and neutron
A) neutrons and protons B) neutrons C) electrons D) protons
A) according to atomic number B) according alphabetical order C) according to atomic mass D) according to number of ions
A) 12 B) 7 C) none D) 5
A) 10 B) 8 C) 7 D) 9
A) copper B) silver C) gold D) potassium
A) electron B) neutron C) molecule D) element
A) 12 B) 11 C) 17 D) 15
A) isometric B) isotope C) compound D) isomers
A) element B) positive C) compound D) ion |