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