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