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