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