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