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