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