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