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