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