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