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