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