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