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