A) 23 B) 60 C) 50 D) 51
A) 17 B) 1 C) 7 D) 3
A) 103 B) 9 C) 45 D) 5
A) 4 B) 15 C) 3 D) 33
A) Halogens B) Alkaline Earth Metals C) Alkaline Metals D) Noble Gases
A) 2 B) 14 C) 7 D) 14.007
A) 56 B) 2 C) 6 D) 137
A) 6 B) 2 C) 7 D) 1
A) Chlorine is a liquid non-metal. B) Tellurium is a solid metalloid. C) Mercury is a solid metal. D) Phosphorus is a non-metal gas.
A) 5 B) 42 C) 6 D) 96
A) 7 B) 3 C) 4 D) 2
A) Bohr B) Rutherford C) Dalton D) Thomson
A) Rutherford B) Dalton C) Bohr D) Thomson
A) Thomson B) Dalton C) Bohr D) Rutherford
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Dalton, Thomson, Bohr, Rutherford B) Dalton, Thomson, Rutherford, Bohr C) Bohr, Rutherford, Dalton, Thomson D) Dalton, Rutherford, Thomson, Bohr
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) chemical change B) physical property C) chemical property D) physical change
A) protons and orbits B) protons and neutrons C) neutrons and electrons D) protons and electrons
A) Mercury and Thallium B) Phosphorus and Silicon C) Carbon and Boron D) Argon and Krypton
A) Dalton's Model B) Rutherford's Model C) Bohr'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) period B) nucleus C) group D) region
A) Beryllium B) Lithium C) Chlorine D) Magnesium
A) Period Number B) State of Matter C) Number of Neutrons D) Group Number
A) period number B) number of protons C) number of neutrons D) group number
A) the mass number minus the atomic number B) the same as the number of energy levels C) the same as the number of electrons D) greater than the mass number
A) State of Matter B) Period Number C) Number of Neutrons D) Group Number
A) Francium B) Nitrogen C) Manganese 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. |