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