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