A) 23 B) 50 C) 60 D) 51
A) 3 B) 7 C) 17 D) 1
A) 103 B) 45 C) 5 D) 9
A) 33 B) 15 C) 4 D) 3
A) Noble Gases B) Alkaline Metals C) Halogens D) Alkaline Earth Metals
A) 7 B) 14.007 C) 2 D) 14
A) 6 B) 2 C) 137 D) 56
A) 1 B) 6 C) 7 D) 2
A) Chlorine is a liquid non-metal. B) Mercury is a solid metal. C) Phosphorus is a non-metal gas. D) Tellurium is a solid metalloid.
A) 5 B) 42 C) 96 D) 6
A) 3 B) 4 C) 2 D) 7
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Dalton B) Thomson C) Rutherford D) Bohr
A) Dalton B) Thomson C) Bohr D) Rutherford
A) Bohr B) Thomson C) Rutherford D) Dalton
A) Bohr, Rutherford, Dalton, Thomson B) Dalton, Thomson, Bohr, Rutherford C) Dalton, Rutherford, Thomson, Bohr D) Dalton, Thomson, Rutherford, 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 change B) chemical property C) physical property D) chemical change
A) protons and neutrons B) neutrons and electrons C) protons and orbits D) protons and electrons
A) Carbon and Boron B) Phosphorus and Silicon C) Argon and Krypton D) Mercury and Thallium
A) Bohr's Model B) Electron Cloud C) Thomson's Model D) Rutherford's Model 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) Magnesium B) Lithium C) Chlorine D) Beryllium
A) Period Number B) Group Number C) Number of Neutrons D) State of Matter
A) number of neutrons B) group number C) period number D) number of protons
A) the same as the number of energy levels B) the mass number minus the atomic number C) greater than the mass number D) the same as the number of electrons
A) Group Number B) Period Number C) Number of Neutrons D) State of Matter
A) Francium B) Manganese C) Nitrogen D) Carbon
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. |