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