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