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