A) 51 B) 60 C) 23 D) 50
A) 3 B) 1 C) 7 D) 17
A) 103 B) 9 C) 45 D) 5
A) 15 B) 3 C) 33 D) 4
A) Alkaline Metals B) Noble Gases C) Halogens D) Alkaline Earth Metals
A) 14 B) 14.007 C) 2 D) 7
A) 137 B) 6 C) 56 D) 2
A) 7 B) 2 C) 1 D) 6
A) Tellurium is a solid metalloid. B) Mercury is a solid metal. C) Chlorine is a liquid non-metal. D) Phosphorus is a non-metal gas.
A) 5 B) 96 C) 42 D) 6
A) 4 B) 2 C) 3 D) 7
A) Rutherford B) Thomson C) Dalton D) Bohr
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Rutherford B) Thomson C) Dalton D) Bohr
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Bohr, Rutherford, Dalton, Thomson B) Dalton, Rutherford, Thomson, Bohr C) Dalton, Thomson, Rutherford, Bohr 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) chemical change B) physical change C) physical property D) chemical property
A) neutrons and electrons B) protons and electrons C) protons and neutrons D) protons and orbits
A) Carbon and Boron B) Mercury and Thallium C) Argon and Krypton D) Phosphorus and Silicon
A) Dalton's Model B) Thomson's Model C) Electron Cloud D) Rutherford's Model E) Bohr's Model
A) the atom is mostly empty space B) atoms are tiny solid spheres C) electrons orbit totally randomly around the nucleus D) the atom is a positively charged sphere with electrons embedded in it
A) region B) period C) group D) nucleus
A) Beryllium B) Chlorine C) Lithium D) Magnesium
A) Period Number B) Number of Neutrons C) Group Number D) State of Matter
A) number of neutrons B) number of protons C) group number D) period number
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) Number of Neutrons B) Group Number C) Period Number D) State of Matter
A) Francium B) Manganese 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. |