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