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