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