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