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