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