A) 60 B) 50 C) 23 D) 51
A) 7 B) 1 C) 17 D) 3
A) 5 B) 45 C) 103 D) 9
A) 3 B) 33 C) 4 D) 15
A) Transition Metals B) Halogens C) Alkali Metals D) Noble Gases E) Alkaline Earth Metals
A) 14.007 B) 2 C) 14 D) 7
A) 56 B) 6 C) 137 D) 2
A) 6 B) 7 C) 1 D) 2
A) Mercury is a solid metal. B) Chlorine is a liquid non-metal. C) Phosphorus is a non-metal gas. D) Tellurium is a solid metalloid.
A) 96 B) 6 C) 5 D) 42
A) 3 B) 2 C) 4 D) 7
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 electrons B) protons and neutrons C) neutrons and electrons D) protons and orbits
A) Carbon and Boron B) Argon and Krypton C) Phosphorus and Silicon D) Mercury and Thallium
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is mostly empty space D) the atom is a positively charged sphere with electrons embedded in it
A) region B) period C) group D) nucleus
A) Lithium B) Magnesium C) Beryllium D) Chlorine
A) period number B) group number C) number of neutrons D) number of protons
A) the same as the number of electrons B) the same as the number of energy levels C) the mass number minus the atomic number D) greater than the mass number
A) Number of Neutrons B) State of Matter C) Group Number D) Period Number
A) Carbon B) Francium C) Nitrogen D) Manganese
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 losing protons B) by adding protons C) By adding or losing electrons D) by adding electrons
A) by adding electrons B) by losing electrons C) by losing protons D) by adding protons
A) by adding protons B) by adding electrons C) by losing protons D) by losing electrons
A) by adding protons B) by adding neutrons C) by adding or losing neutrons D) by adding electrons
A) mass number divided by 2 B) difference between the atomic and mass number C) same as the mass number D) same as the atomic 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) Hg and C B) Mg and F C) Na and Li D) B and O
A) Li and Po B) Ba and Ra C) Mg and Cl D) F and At
A) The alkali metals B) The transition metals C) The alkali earth metals D) The noble gases E) The halogens
A) The halogens B) The noble gases C) The transition metals D) The alkali metals
A) 17 B) 4 C) 8 D) 1 E) 18
A) how reactive they are B) how many electrons there are C) how many electron levels there are D) how many protons there are
A) the number of protons B) the number of neutrons C) how many electrons the atom has D) how many valence electrons the atom has
A) Fluorine B) Mercury C) Silver D) Sodium E) Iron
A) H B) Au C) F D) Li E) Al
A) Mg B) Cs C) Al D) I E) Li
A) the number of electrons B) the number of protons C) the number of neutrons
A) Newton B) Dalton C) Bohr D) Mendeleev E) Lewis |