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