A) 60 B) 51 C) 23 D) 50
A) 17 B) 3 C) 1 D) 7
A) 45 B) 5 C) 103 D) 9
A) 4 B) 15 C) 3 D) 33
A) Transition Metals B) Noble Gases C) Alkaline Earth Metals D) Alkali Metals E) Halogens
A) 14.007 B) 7 C) 14 D) 2
A) 2 B) 56 C) 137 D) 6
A) 6 B) 1 C) 7 D) 2
A) Tellurium is a solid metalloid. B) Phosphorus is a non-metal gas. C) Chlorine is a liquid non-metal. D) Mercury is a solid metal.
A) 96 B) 42 C) 6 D) 5
A) 3 B) 2 C) 4 D) 7
A) proton/+, neutron/-, electron/no charge B) proton/+, electron/neutral, neutron/- C) proton/-, electron/+, neutron/no charge D) proton/+, electron/-, neutron/uncharged
A) protons and orbits B) neutrons and electrons C) protons and electrons D) protons and neutrons
A) Argon and Krypton B) Phosphorus and Silicon C) Carbon and Boron D) Mercury and Thallium
A) the atom is a positively charged sphere with electrons embedded in it B) electrons orbit totally randomly around the nucleus C) the atom is mostly empty space D) atoms are tiny solid spheres
A) period B) nucleus C) group D) region
A) Chlorine B) Beryllium C) Magnesium D) Lithium
A) period number B) number of protons C) number of neutrons D) group 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) Group Number B) Number of Neutrons C) State of Matter D) Period Number
A) Nitrogen B) Francium C) Manganese 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.
A) By adding or losing electrons B) by adding protons C) by adding electrons D) by losing protons
A) by adding protons B) by adding electrons C) by losing protons D) by losing electrons
A) by adding protons B) by losing electrons C) by adding electrons D) by losing protons
A) by adding or losing neutrons B) by adding electrons C) by adding protons D) by adding neutrons
A) mass number divided by 2 B) same as the mass number C) difference between the atomic and mass number D) same as the atomic number
A) the difference between the mass and atomic number B) the same as the mass number C) the same as the number of neutrons D) the same as the atomic number
A) Na and Li B) Hg and C C) B and O D) Mg and F
A) Ba and Ra B) Mg and Cl C) F and At D) Li and Po
A) The alkali metals B) The noble gases C) The halogens D) The transition metals E) The alkali earth metals
A) The noble gases B) The transition metals C) The alkali metals D) The halogens
A) 1 B) 17 C) 8 D) 18 E) 4
A) how many protons there are B) how many electrons there are C) how reactive they are D) how many electron levels there are
A) how many valence electrons the atom has B) the number of protons C) the number of neutrons D) how many electrons the atom has
A) Fluorine B) Mercury C) Sodium D) Iron E) Silver
A) Li B) H C) Al D) F E) Au
A) Cs B) I C) Li D) Mg E) Al
A) the number of protons B) the number of electrons C) the number of neutrons
A) Lewis B) Mendeleev C) Dalton D) Bohr E) Newton |