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Periodic Table
Periodic Table
TRUE OR FALSE: electrons closer to the nucleus have stronger energy levels, and electrons further from the nucleus have weaker energy levels.
FALSE
Do polar molecules dissolve easily?
Yes, and nonpolar molecules do not dissolve in water (easily, if at all!)
When is an element's connection ionic and when is it covalent (not asking about the valence electrons)?
The answer I was looking for: because ionic bonds occur between (a) nonmetal and metal, whereas covalent bonds happen between either (a) nonmetal and a nonmetal, or a metal and metal.
Which type of bond shares electrons and which one transfer electrons.
Covalent bonds share electrons while ionic bonds transfer electrons.
When is an element reactive?
When it's valence electrons are not completing an outershell.
What are the two different numbers of dots that can make out the full outer shell of an atom?
2 and 8
What types of bonds will always be polar?
Ionic bonds
... CO2 and why?
CO2 is covalent because it is a sharing between multiple non-metals.
What is CHNOPS and what does it stand for?
CHNOPS is the six elements that make up our bodies. It stands for Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, and Sulfur.
What is a good example of a non-polar item, what it doesn't do, and why.
Oil, it doesn't mix with polar molecules, this is because of the balance in how tightly "packed" the polar molecules are together.
What is it called in covalent bonds that allows the atoms to share electrons in the cloud?
Electronegativity
How do metals' atoms act and what shapes do they form in the element?
They are tightly packed together in various "chunky" shapes.
What is a polar molecule?
A molecule that is partially positive and partially negative, making it uneven (electron-wise).
A molecule is which type of bond?
Covalent
What are the three sections of the periodic table and where are they located?
Metals (majority of space, mainly right), Metalloids (top left), and Nonmetals (strip in between both of the others)