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