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