A) 50 B) 51 C) 60 D) 23
A) 1 B) 3 C) 7 D) 17
A) 103 B) 9 C) 5 D) 45
A) 33 B) 15 C) 3 D) 4
A) Halogens B) Noble Gases C) Alkaline Earth Metals D) Alkaline Metals
A) 14.007 B) 2 C) 7 D) 14
A) 2 B) 56 C) 137 D) 6
A) 7 B) 6 C) 1 D) 2
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) 6 B) 42 C) 96 D) 5
A) 7 B) 2 C) 3 D) 4
A) Bohr B) Thomson C) Dalton D) Rutherford
A) Rutherford B) Thomson C) Bohr D) Dalton
A) Bohr B) Thomson C) Rutherford D) Dalton
A) Bohr B) Dalton C) Rutherford D) Thomson
A) Dalton, Thomson, Bohr, Rutherford B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Rutherford, Bohr D) Dalton, Rutherford, Thomson, 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) chemical property C) physical property D) physical change
A) protons and neutrons B) neutrons and electrons C) protons and orbits D) protons and electrons
A) Mercury and Thallium B) Carbon and Boron C) Argon and Krypton D) Phosphorus and Silicon
A) Dalton's Model B) Bohr's Model C) Rutherford's Model D) Thomson's Model E) Electron Cloud
A) atoms are tiny solid spheres B) electrons orbit totally randomly around the nucleus C) the atom is mostly empty space D) the atom is a positively charged sphere with electrons embedded in it
A) nucleus B) group C) period D) region
A) Lithium B) Magnesium C) Beryllium D) Chlorine
A) State of Matter B) Period Number C) Group Number D) Number of Neutrons
A) group number B) number of neutrons C) number of protons D) period number
A) greater than the mass number B) the same as the number of energy levels C) the mass number minus the atomic number D) the same as the number of electrons
A) Number of Neutrons B) Period Number C) Group Number D) State of Matter
A) Francium B) Manganese C) Nitrogen 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. |