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