A) 60 B) 23 C) 50 D) 51
A) 17 B) 3 C) 1 D) 7
A) 5 B) 103 C) 45 D) 9
A) 33 B) 4 C) 3 D) 15
A) Halogens B) Alkaline Earth Metals C) Alkaline Metals D) Noble Gases
A) 14.007 B) 2 C) 7 D) 14
A) 137 B) 6 C) 2 D) 56
A) 7 B) 2 C) 1 D) 6
A) Tellurium is a solid metalloid. B) Mercury is a solid metal. C) Phosphorus is a non-metal gas. D) Chlorine is a liquid non-metal.
A) 6 B) 96 C) 42 D) 5
A) 2 B) 3 C) 7 D) 4
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Rutherford B) Dalton C) Bohr D) Thomson
A) Thomson B) Dalton C) Bohr D) Rutherford
A) Rutherford B) Dalton C) Thomson D) Bohr
A) Dalton, Rutherford, Thomson, Bohr B) Dalton, Thomson, Bohr, Rutherford C) Dalton, Thomson, Rutherford, Bohr 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 neutrons B) protons and orbits C) neutrons and electrons D) protons and electrons
A) Phosphorus and Silicon B) Argon and Krypton C) Carbon and Boron D) Mercury and Thallium
A) Bohr's Model B) Thomson's Model C) Rutherford's Model D) Electron Cloud E) Dalton's Model
A) electrons orbit totally randomly around the nucleus B) the atom is a positively charged sphere with electrons embedded in it C) the atom is mostly empty space D) atoms are tiny solid spheres
A) period B) group C) nucleus D) region
A) Beryllium B) Chlorine C) Lithium D) Magnesium
A) State of Matter B) Period Number C) Number of Neutrons D) Group Number
A) number of protons B) period number C) number of neutrons D) group number
A) the same as the number of energy levels B) greater than the mass number C) the same as the number of electrons D) the mass number minus the atomic number
A) State of Matter B) Period Number C) Number of Neutrons D) Group Number
A) Francium B) Manganese C) Nitrogen D) Carbon
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. |