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