The second energy level is p with ______ orbitals and a maximum of _______ electrons.

In 1869, ______________________________ first published the modern arrangement of the elements that is the basis of our periodic table today. 

The first energy level is _______ with 1 orbital and a maximum of _____ electrons. 

The diameter of an average atom is approximately ________________ times larger than the diameter of its nucleus.

Each periodic rise in melting point begins with one of the ______________________ in the lithium column.

The repetition or patterns in the periodic table is known as _________________________.

Part I: Multiple Choice Questions Select a response for each of the following Multiple Choice questions. There are ten Multiple Choice questions, worth 6 points each.

____ refers to a person’s genetic makeup, while ____ refers to a person’s physical characteristics.

_____ is the field of study that focuses on genes and their expression.

Which researcher believed providing genuineness, empathy, and unconditional positive regard were critical to help clients?