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