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