How are ions made from neutral atoms? Why?
O KATIE
yes
-
no
You have learned that not all atoms of an element are the same. Variation in the number of neutrons
results in different isotopes of the element. In this activity we will explore another variation that can take
place—the loss and gain of electrons. The exchange of electrons between atoms is a very common way for
chemical change to take place. We will see it many times throughout the year.
1. Use Model 1 to complete the following table.
see p. 2 for the model
Is the number of Is the number of Is the number of
Metal or protons the same panteons the same electrons the same
Charge
on the
Nonmetal in the atom in the atom in the atom
ion
and the ion? and the ion? and the ion?
Lithium
metal
no
1+
Magnesium
2+
Aluminum
yes
3+
Fluorine
1-
Oxygen nonmetal
Nitrogen
3-
2. Based on the table you completed in Question 1, what distinguishes a neutral atom from an ion?
Circle choice
Protons
Electrons
3. Examine the isotope symbols in Model 1.
a. Where is the ion charge located in the stope symbol?
Circle 2 choices: Top OR bottom + Left OR Right
be Is a charge indicated on the neutral atoms? If yes, where is it located?
No, charge is not indicated on an atom, because it is neutral
4. Which subatomic particle carries a positive charge?
no
2-
Inmut