Question

Identify the element, the isotope, and the charge state of each atom in FIGURE $Q.37.12$ . Give your answer in symbolic form, such as ⁴He⁺ or ⁸Be^-.

Short answer

From the figure we can conclude

a) ⁶Li⁺

b) ¹³C^-

Step-by-step solution

Part (a): Step 1: Given Information

We have given a figure. From the figure, it can be seen that a figure of an atom having $3$neutrons, $3$protons, and $2$electrons is given.

Part (a): Step 2: Explanation

The total number of protons gives the atomic number. So, $3$protons mean an atom having an atomic number $3$which means it is Lithium (Li).

As we know for an atom to be neutral it must have an equal number of protons and electrons. But in the figure, there are only $2$electrons. So, it is positively charged.

Now, atomic mass is calculated by adding the total number of protons and neutrons. So, $3$protons$+$$3$neutrons = $6$amu. (atomic mass unit)

Thus, it is ⁶Li⁺.

Part (b): Step 1: Given Information

We have given a figure. From the figure, it can be seen that a figure of an atom having $6$protons, $7$neutrons and $7$electrons.

Part (b): Step 2: Explanation

The total number of protons gives the atomic number. So, $6$protons mean an atom having atomic number $6$which means it is Carbon (C).

As we know for an atom to be neutral it must have an equal number of protons and electrons. But in the figure, there are $7$electrons. So, it is negatively charged.

Now, atomic mass is calculated by adding the total number of protons and neutrons. So,$6protons+7neutrons=13amu$

Thus, it is ¹³C^-.