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