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