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