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