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