A) 50 B) 51 C) 60 D) 23
A) 17 B) 3 C) 7 D) 1
A) 45 B) 9 C) 103 D) 5
A) 3 B) 4 C) 33 D) 15
A) Halogens B) Alkaline Metals C) Noble Gases D) Alkaline Earth Metals
A) 2 B) 14 C) 7 D) 14.007
A) 137 B) 2 C) 56 D) 6
A) 1 B) 6 C) 7 D) 2
A) Tellurium is a solid metalloid. B) Chlorine is a liquid non-metal. C) Phosphorus is a non-metal gas. D) Mercury is a solid metal.
A) 96 B) 42 C) 6 D) 5
A) 3 B) 4 C) 2 D) 7
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Thomson B) Rutherford C) Dalton D) Bohr
A) Thomson B) Dalton C) Bohr D) Rutherford
A) Dalton, Rutherford, Thomson, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Thomson, Rutherford, Bohr
A) proton = positive, electron = neutral, neutron = negative B) proton = positive, neutron = negative, electron = no charge C) proton = negative, electron = positive, neutron = no charge D) proton = positive, electron = negative, neutron = uncharged
A) chemical change B) physical property C) chemical property D) physical change
A) protons and neutrons B) protons and orbits C) protons and electrons D) neutrons and electrons
A) Mercury and Thallium B) Phosphorus and Silicon C) Carbon and Boron D) Argon and Krypton
A) Electron Cloud B) Dalton's Model C) Bohr's Model D) Thomson's Model E) Rutherford's Model
A) electrons orbit totally randomly around the nucleus B) the atom is a positively charged sphere with electrons embedded in it C) atoms are tiny solid spheres D) the atom is mostly empty space
A) group B) region C) nucleus D) period
A) Magnesium B) Lithium C) Chlorine D) Beryllium
A) State of Matter B) Group Number C) Number of Neutrons D) Period Number
A) group number B) number of neutrons C) number of protons D) period number
A) the same as the number of energy levels B) the same as the number of electrons C) the mass number minus the atomic number D) greater than the mass number
A) Group Number B) Number of Neutrons C) State of Matter D) Period Number
A) Francium B) Nitrogen C) Manganese D) Carbon
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons. |