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