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