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