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