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