Review the electron configurations of the elements in group 2, moving down from beryllium (Besto radim (ka you observe?
Select the correct answer,
Moving down the group, each element has one more electron in its highest s sublevel than the element at
Each element's electron configuration has a noble gas core with two electrons in the nexts sublevel,
Moving down the group, each element has two more electrons than the element that comes above it.
The electron configuration of radium does not follow the pattern of the other elements in group 2

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome

In which of the following relationships is one organism always benefited while the other organism is always harmed

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes