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