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