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