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