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