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