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