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