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