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