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