Rows of elements are called periods. The period number<span> of an element signifies the highest unexcited energy level for an electron in that element.
</span>Columns of elements help define element groups<span>. </span>Elements within a group share<span> several common properties. Groups are elements have the same outer electron arrangement.</span>
Answer:
friction
Explanation:
the resistance that one surface or object encounters when moving over another.
Explanation:
The answer is halogens
Halogens are reactive non metallic elements that form strongly acidic compounds with Hydrogen to form simple salts
:<span> </span><span>A clastic sedimentary rock will be full of... clasts. Pieces of shells, ooids, pizoids, etc. A chemically formed sedimentary rock may have these but it will dominantly be a layered rock, you should be able to see concentric layers</span>
Answer:
34.4
Explanation:
You would divide the mg by 1000 to get the number of grams.