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