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