A) 51 B) 23 C) 60 D) 50
A) 1 B) 7 C) 17 D) 3
A) 5 B) 103 C) 45 D) 9
A) 15 B) 3 C) 4 D) 33
A) Alkali Metals B) Alkaline Earth Metals C) Noble Gases D) Halogens E) Transition Metals
A) 7 B) 2 C) 14.007 D) 14
A) 56 B) 2 C) 137 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) 6 B) 42 C) 5 D) 96
A) 3 B) 2 C) 7 D) 4
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 orbits B) neutrons and electrons C) protons and electrons D) protons and neutrons
A) Phosphorus and Silicon B) Argon and Krypton C) Carbon and Boron D) Mercury and Thallium
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) period B) nucleus C) group D) region
A) Chlorine B) Lithium C) Magnesium D) Beryllium
A) number of neutrons B) number of protons C) group number D) period number
A) the mass number minus the atomic number B) the same as the number of energy levels C) greater than the mass number D) the same as the number of electrons
A) Period Number B) Group Number C) State of Matter D) Number of Neutrons
A) Carbon B) Francium C) Nitrogen 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 protons B) by adding electrons C) By adding or losing electrons D) by losing protons
A) by adding protons B) by losing protons C) by losing electrons D) by adding electrons
A) by losing protons B) by adding electrons C) by losing electrons D) by adding protons
A) by adding or losing neutrons B) by adding protons C) by adding electrons D) by adding neutrons
A) mass number divided by 2 B) same as the atomic number C) difference between the atomic and mass number D) same as the mass number
A) the same as the atomic number B) the difference between the mass and atomic number C) the same as the number of neutrons D) the same as the mass number
A) Mg and F B) B and O C) Na and Li D) Hg and C
A) Mg and Cl B) Li and Po C) F and At D) Ba and Ra
A) The halogens B) The alkali metals C) The alkali earth metals D) The transition metals E) The noble gases
A) The noble gases B) The halogens C) The transition metals D) The alkali metals
A) 8 B) 4 C) 1 D) 17 E) 18
A) how reactive they are B) how many protons there are C) how many electrons there are D) how many electron levels 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) Fluorine B) Sodium C) Silver D) Iron E) Mercury
A) F B) H C) Au D) Li E) Al
A) Cs B) Li C) Al D) Mg E) I
A) the number of neutrons B) the number of protons C) the number of electrons
A) Mendeleev B) Bohr C) Newton D) Lewis E) Dalton |