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