Un átomo Y tiene 13 protones y 13 electrones y pierde 3 electrones, represente el ion

Explanation:

Notice that in the periodic table, the atom with 13 protons is the aluminum, whose chemical symbol is; .

When it is neutral (same number of protons than orbital electrons) there is nothing particular added to its symbol, but when it has lost 3 electrons, now the charges of the nucleus compared to such of the orbits are not in balance any more, because there are three positive charges unpaired. Now it is an ion, and the way to represent it is to add on the upper right of its symbol, a a "3+" representing the charge imbalance:

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.