A) 23 B) 51 C) 50 D) 60
A) 7 B) 17 C) 3 D) 1
A) 45 B) 9 C) 103 D) 5
A) 33 B) 15 C) 3 D) 4
A) Alkaline Metals B) Noble Gases C) Alkaline Earth Metals D) Halogens
A) 14 B) 2 C) 7 D) 14.007
A) 2 B) 56 C) 137 D) 6
A) 2 B) 6 C) 7 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) 5 B) 6 C) 42 D) 96
A) 7 B) 2 C) 3 D) 4
A) Dalton B) Thomson C) Rutherford D) Bohr
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Thomson B) Rutherford C) Dalton D) Bohr
A) Dalton, Rutherford, Thomson, Bohr B) Dalton, Thomson, Bohr, Rutherford C) Dalton, Thomson, Rutherford, Bohr D) Bohr, Rutherford, Dalton, Thomson
A) proton = positive, electron = neutral, neutron = negative B) proton = positive, neutron = negative, electron = no charge C) proton = positive, electron = negative, neutron = uncharged D) proton = negative, electron = positive, neutron = no charge
A) physical change B) chemical property C) physical property D) chemical change
A) protons and neutrons B) neutrons and electrons C) protons and orbits D) protons and electrons
A) Carbon and Boron B) Mercury and Thallium C) Argon and Krypton D) Phosphorus and Silicon
A) Thomson's Model B) Rutherford's Model C) Dalton's Model D) Bohr'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) nucleus B) period C) group D) region
A) Beryllium B) Magnesium C) Chlorine D) Lithium
A) State of Matter B) Group Number C) Period Number D) Number of Neutrons
A) number of protons B) group number C) number of neutrons D) period number
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) Period Number C) Number of Neutrons D) State of Matter
A) Carbon B) Nitrogen C) Francium 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. |