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