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