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