To solve this problem, we need to fill in the missing information for the element shown in the example box:
Boron (B).
Here is the step-by-step breakdown based on the instructions in the worksheet:
Step 1: Complete the squares
*
Atomic Number (P): The number at the top of the square is
5. This represents the number of protons.
*
Name: The name under the symbol B is
Boron.
*
Atomic Mass (E): The number at the bottom is
10.81.
Step 2: Determine protons, neutrons, and electrons
*
Protons (P): Equal to the atomic number. So, $P = 5$.
*
Electrons (E): In a neutral atom, electrons equal protons. So, $E = 5$.
*
Neutrons (N): To find neutrons, round the atomic mass to the nearest whole number ($10.81 \rightarrow 11$) and subtract the atomic number.
* Calculation: $11 - 5 = 6$. So, $N = 6$.
*(Note: The worksheet image actually has these answers written in pencil already: P=5, N=6, E=5. We have verified they are correct.)*
Step 3 & 4: Diagrams
*
Bohr Diagram: You would draw a nucleus with "5p" and "6n". Then draw two rings around it. The first ring gets 2 electrons, and the second ring gets 3 electrons (total 5).
*
Lewis Structure: You write the symbol
B and put
3 dots around it (representing the 3 valence electrons in the outer shell).
Step 5: Color Coding
* Look at the key provided in Step 5.
* Find where Boron (
B) is listed.
* It says:
"Blue = Be & Mg" ... wait, let's look closer. Actually, usually Boron is a metalloid. Let's re-read the specific key in the image carefully.
* Green = Li & Na
* Pink = O & S
* Blue = Be & Mg
* Purple = F & Cl
* Orange = B & Al <--
Found it!
* Red = C & Si
* Tan = N & P
* Yellow = He, Ne, & Ar
* Therefore, you should color the small square in the upper left-hand corner
Orange.
Step 6: Arrangement
* Boron has atomic number 5.
* Looking at the grid pattern at the bottom:
* Row 1: 1, 2
* Row 2: 3, 4, 5, 6, 7, 8, 9, 10
* Boron (5) goes in the
3rd box of the second row.
──────────────────────────────────────
Final Answer:
Element Data for Boron (B):
*
Atomic Number (Protons): 5
*
Atomic Mass: 10.81
*
Neutrons: 6
*
Electrons: 5
*
Color Code: Orange
*
Grid Position: Second row, 3rd box (between 4 and 6).
Parent Tip: Review the logic above to help your child master the concept of periodic table basics worksheet answer key.
