question 26\n1 pts\nwhat is the length of the...
question 26\n1 pts\nwhat is the length of the object below? remember to use correct sig figs. only type a number, do not use units in your answer.\n\nquestion 27\n1 pts\nwhat is the electron configuration of carbon?\n1s2 2s2 1p2\n1s2 2s2 2p2\n1s2 2s2\n1s2 2s2 2p6\n\nquestion 28\n1 pts
Answer
# Answer:
## Question 26:
0.8
## Question 27:
1s2 2s2 2p2
# Explanation:
## Question 26:
### Step1: Read the measurement
The end - point of the object is at 0.8 cm on the ruler. Since we are not using units and following significant figures rules for a simple reading like this, the number is 0.8.
## Question 27:
### Step1: Recall electron - filling rules
Carbon has 6 electrons. Electrons fill orbitals in the order of increasing energy. The 1s orbital fills first (2 electrons), then the 2s orbital (2 electrons), and then the 2p orbital (2 electrons). So the electron configuration is 1s2 2s2 2p2.