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