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