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