A) 60 B) 51 C) 50 D) 23
A) 3 B) 7 C) 17 D) 1
A) 45 B) 9 C) 5 D) 103
A) 4 B) 3 C) 33 D) 15
A) Alkaline Earth Metals B) Noble Gases C) Halogens D) Alkaline Metals
A) 14 B) 7 C) 2 D) 14.007
A) 137 B) 2 C) 6 D) 56
A) 7 B) 6 C) 1 D) 2
A) Tellurium is a solid metalloid. B) Phosphorus is a non-metal gas. C) Chlorine is a liquid non-metal. D) Mercury is a solid metal.
A) 5 B) 6 C) 96 D) 42
A) 2 B) 7 C) 4 D) 3
A) Rutherford B) Thomson C) Bohr D) Dalton
A) Thomson B) Bohr C) Dalton D) Rutherford
A) Bohr B) Rutherford C) Dalton D) Thomson
A) Thomson B) Bohr C) Dalton D) Rutherford
A) Dalton, Rutherford, Thomson, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Thomson, Rutherford, 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 property B) physical change C) physical property D) chemical change
A) protons and orbits B) protons and electrons C) neutrons and electrons D) protons and neutrons
A) Phosphorus and Silicon B) Mercury and Thallium C) Carbon and Boron D) Argon and Krypton
A) Electron Cloud B) Rutherford's Model C) Bohr's Model D) Dalton's Model E) Thomson's Model
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) nucleus B) group C) region D) period
A) Chlorine B) Lithium C) Beryllium D) Magnesium
A) Group Number B) Period Number C) Number of Neutrons D) State of Matter
A) number of neutrons B) period number C) number of protons D) group number
A) the same as the number of energy levels B) the same as the number of electrons C) greater than the mass number D) the mass number minus the atomic number
A) State of Matter B) Number of Neutrons C) Period Number D) Group Number
A) Manganese B) Carbon C) Nitrogen D) Francium
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. |