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