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