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