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