For that you have to use the Aufbau principle
For example, writing the electronic configuration of Fe(28)
I recommend that you memorize the aufbau principle. Once you learn it, you don’t need anything else except the atomic number of the element to write it’s electronic configuration.
Answer:
Metal Color
Cobalt Pink (when hydrated)
Copper Blue
Iron (II) Green pale
Iron (III) Reddish brown
Answer:
D
Explanation:
hydrogen is stable and the seven neutron of nitrogen will bond with hydrogen making them polar
Hi there! To calculate rate of change, you need to do y^2 - y^1 over x^2 - x^1. The y’s refer to the second number in each coordinate and the x’s refer to the first number in each coordinate. The exponents show which x and y to put in. The first pair of coordinates would be the 1’s, and the second pair of coordinates would be the 2’s. Fill in the y’s and x’s. Then subtract them from one another. The answer you get, which will be a fraction, is the rate of change ;)
Do you have a picture of the sample?
