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