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