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