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