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