A) 60 B) 51 C) 23 D) 50
A) 7 B) 3 C) 1 D) 17
A) 103 B) 45 C) 5 D) 9
A) 3 B) 4 C) 33 D) 15
A) Halogens B) Alkaline Earth Metals C) Transition Metals D) Noble Gases E) Alkali Metals
A) 2 B) 7 C) 14 D) 14.007
A) 137 B) 2 C) 6 D) 56
A) 1 B) 6 C) 7 D) 2
A) Tellurium is a solid metalloid. B) Phosphorus is a non-metal gas. C) Chlorine is a liquid non-metal. D) Mercury is a solid metal.
A) 42 B) 5 C) 96 D) 6
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 electrons B) neutrons and electrons C) protons and orbits D) protons and neutrons
A) Mercury and Thallium B) Carbon and Boron C) Phosphorus and Silicon D) Argon and Krypton
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) nucleus B) period C) region D) group
A) Lithium B) Magnesium C) Chlorine D) Beryllium
A) number of neutrons B) period number C) group number D) number of protons
A) the mass number minus the atomic number B) greater than the mass number C) the same as the number of energy levels D) the same as the number of electrons
A) Period Number B) Number of Neutrons C) State of Matter D) Group Number
A) Nitrogen B) Manganese C) Carbon D) Francium
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 or losing electrons B) by losing protons C) by adding protons D) by adding electrons
A) by adding protons B) by adding electrons C) by losing protons D) by losing electrons
A) by adding electrons B) by losing protons C) by losing electrons D) by adding protons
A) by adding or losing neutrons B) by adding neutrons C) by adding electrons D) by adding protons
A) mass number divided by 2 B) same as the mass number C) same as the atomic number D) difference between the atomic and mass number
A) the same as the mass number B) the same as the number of neutrons C) the difference between the mass and atomic number D) the same as the atomic number
A) Mg and F B) B and O C) Na and Li D) Hg and C
A) Mg and Cl B) Ba and Ra C) Li and Po D) F and At
A) The alkali metals B) The alkali earth metals C) The halogens D) The transition metals E) The noble gases
A) The noble gases B) The alkali metals C) The halogens D) The transition metals
A) 18 B) 1 C) 4 D) 17 E) 8
A) how many electrons there are B) how reactive they are C) how many protons there are D) how many electron levels there are
A) the number of neutrons B) how many valence electrons the atom has C) how many electrons the atom has D) the number of protons
A) Sodium B) Mercury C) Fluorine D) Silver E) Iron
A) Au B) F C) H D) Li E) Al
A) Mg B) Cs C) Al D) I E) Li
A) the number of protons B) the number of neutrons C) the number of electrons
A) Newton B) Lewis C) Mendeleev D) Dalton E) Bohr |