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