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