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