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