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