Answer:
Because X-rays have wavelengths similar to the size of atoms
CH4 and PH3 are both covalent since they are composed both of non-metals.
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CH4 is non- polar because of </span> London forces and<span> has a geometry of tetrahedral PH3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (IMF) . Since PH3 is polar, it has a stronger IMF </span>
Answer:positive
Explanation: because there are more protons than electrons in the ion
Answer:
Magnesium oxide
Explanation:
When magnesium reacts with oxygen, the magnesium atoms donate electrons to O2 molecules and thereby reduce the oxygen. Magnesium therefore acts as a reducing agent in this reaction. The O2 molecules, on the other hand, gain electrons from magnesium atoms and thereby oxidize the magnesium.