Chemistry, 17.12.2019 13:31 simrankaurdhatt
Elements that are arranged in the same column on the periodic table belong to the same family of elements. the atoms of elements in the same family all have the same number of valence in their outer shell.
a. protons
b. neutrons
c. electrons
d. all of these
Answers: 3
Chemistry, 21.06.2019 23:00
Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende
Answers: 1
Chemistry, 22.06.2019 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Chemistry, 22.06.2019 12:00
Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?
Answers: 2
Elements that are arranged in the same column on the periodic table belong to the same family of ele...
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