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