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