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