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