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