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