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