Carbon 14 because it has an approximate half life of 5000 years.
Answer:
A pH of 7 is neutral.A pH of less than 7 is acidic.
Explanation:
Answer:
Periods on the periodic table of elements
Explanation:
In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families. (See also The Periodic Table: Metals, Nonmetals, and Metalloids.) In each period (horizontal row), the atomic numbers increase from left to right.
Answer:
Nothing is shown below!!!