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