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