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