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