A) 51 B) 60 C) 50 D) 23
A) 3 B) 1 C) 7 D) 17
A) 103 B) 9 C) 45 D) 5
A) 4 B) 3 C) 33 D) 15
A) Noble Gases B) Halogens C) Transition Metals D) Alkaline Earth Metals E) Alkali Metals
A) 7 B) 14 C) 2 D) 14.007
A) 6 B) 56 C) 137 D) 2
A) 7 B) 6 C) 2 D) 1
A) Mercury is a solid metal. B) Phosphorus is a non-metal gas. C) Chlorine is a liquid non-metal. D) Tellurium is a solid metalloid.
A) 96 B) 42 C) 6 D) 5
A) 4 B) 2 C) 3 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) neutrons and electrons B) protons and orbits 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) 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) region C) nucleus D) period
A) Beryllium B) Magnesium C) Chlorine D) Lithium
A) group number B) period number C) number of protons D) number of neutrons
A) the same as the number of energy levels B) greater than the mass number C) the same as the number of electrons D) the mass number minus the atomic number
A) Group Number B) Period Number C) Number of Neutrons D) State of Matter
A) Francium B) Nitrogen 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 protons B) by losing protons C) By adding or losing electrons D) by adding electrons
A) by adding electrons B) by adding protons C) by losing electrons D) by losing protons
A) by losing protons B) by adding protons C) by adding electrons D) by losing electrons
A) by adding or losing neutrons B) by adding neutrons C) by adding protons D) by adding electrons
A) mass number divided by 2 B) same as the atomic number C) same as the mass number 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) B and O B) Hg and C C) Na and Li D) Mg and F
A) Mg and Cl B) F and At C) Li and Po D) Ba and Ra
A) The transition metals B) The alkali metals C) The noble gases D) The halogens E) The alkali earth metals
A) The noble gases B) The alkali metals C) The transition metals D) The halogens
A) 17 B) 4 C) 18 D) 1 E) 8
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 neutrons D) the number of protons
A) Iron B) Fluorine C) Mercury D) Sodium E) Silver
A) Li B) Au C) H D) F E) Al
A) Mg B) Li C) Al D) Cs E) I
A) the number of electrons B) the number of neutrons C) the number of protons
A) Dalton B) Newton C) Bohr D) Mendeleev E) Lewis |