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