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