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