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