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