Examlex
Which ion has the same electron configuration as Kr?
Immune System
The body's defense mechanism against infections, diseases, and foreign substances, composed of specialized cells, tissues, organs, and processes.
Physical Illness
A condition affecting the body, often caused by infection, genetics, or environmental factors, leading to dysfunction or pain.
Personal Factors
Individual characteristics that influence behavior and performance, such as attitudes, skills, knowledge, and personality traits.
Optimism
A mental attitude characterized by hope and confidence in success and a positive future.
Q7: Which one of the following is not
Q11: Consider the following balanced reaction. 4A +
Q30: Which of the following ionic compounds would
Q47: The number of electrons in the ion
Q65: The bonds in the polyatomic ion CO<sub>3</sub><sup>2-</sup>
Q88: The symbol [Kr] represents<br>A)4s<sup>2</sup>4p<sup>6</sup>.<br>B)1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>4s<sup>2</sup>4p<sup>6</sup>.<br>C)1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>10</sup>4s<sup>2</sup>4p<sup>6</sup>.<br>D)1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>10</sup>4s<sup>2</sup>4p<sup>6</sup>4d<sup>10</sup>.
Q91: Which element can accommodate more than eight
Q94: Which sphere most likely represents the Mg<sup>2+</sup>
Q108: CH<sub>3</sub>CO<sub>2</sub>H is an example of a _
Q133: Of the following,which element has the highest