A) 60 B) 23 C) 50 D) 51
A) 1 B) 3 C) 17 D) 7
A) 5 B) 45 C) 9 D) 103
A) 15 B) 3 C) 33 D) 4
A) Noble Gases B) Transition Metals C) Alkali Metals D) Halogens E) Alkaline Earth Metals
A) 14 B) 2 C) 7 D) 14.007
A) 2 B) 6 C) 56 D) 137
A) 1 B) 2 C) 7 D) 6
A) Phosphorus is a non-metal gas. B) Tellurium is a solid metalloid. C) Mercury is a solid metal. D) Chlorine is a liquid non-metal.
A) 5 B) 96 C) 6 D) 42
A) 7 B) 2 C) 4 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 electrons C) neutrons and electrons D) protons and neutrons
A) Phosphorus and Silicon B) Mercury and Thallium C) Carbon and Boron D) Argon and Krypton
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is mostly empty space D) the atom is a positively charged sphere with electrons embedded in it
A) nucleus B) group C) region D) period
A) Lithium B) Chlorine C) Magnesium D) Beryllium
A) period number B) number of neutrons C) number of protons D) group number
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) State of Matter B) Group Number C) Period Number D) Number of Neutrons
A) Nitrogen B) Carbon C) Francium 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 or losing electrons B) by adding electrons C) by adding protons D) by losing protons
A) by losing protons B) by adding electrons C) by losing electrons D) by adding protons
A) by losing protons B) by losing electrons C) by adding protons D) by adding electrons
A) by adding protons B) by adding or losing neutrons C) by adding electrons D) by adding neutrons
A) mass number divided by 2 B) same as the mass number C) same as the atomic number D) difference between the atomic and mass number
A) the same as the number of neutrons B) the same as the mass number C) the same as the atomic number D) the difference between the mass and atomic number
A) Hg and C B) Na and Li C) Mg and F D) B and O
A) Li and Po B) Mg and Cl C) Ba and Ra D) F and At
A) The alkali earth metals B) The noble gases C) The transition metals D) The alkali metals E) The halogens
A) The halogens B) The alkali metals C) The transition metals D) The noble gases
A) 17 B) 8 C) 4 D) 1 E) 18
A) how many electron levels there are B) how reactive they are C) how many protons there are D) how many electrons there are
A) the number of neutrons B) how many valence electrons the atom has C) how many electrons the atom has D) the number of protons
A) Iron B) Fluorine C) Sodium D) Silver E) Mercury
A) Li B) H C) Al D) Au E) F
A) Cs B) Li C) Mg D) Al E) I
A) the number of electrons B) the number of protons C) the number of neutrons
A) Lewis B) Mendeleev C) Bohr D) Newton E) Dalton |