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