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