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