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