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