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