Which of the following groups contains reactive elements that need to gain only one electron to have a full outer energy level?

alkali metals

alkaline earth metals

halogens

noble gases

Select all of the answers that apply. Examine the following rock strata. Using the laws of biostratigraphy, which of the following statements are true about the relative ages of the rock layers and intrusion?

Briefly describe the movement of water through the water cycle

How much percent of energy presents at one level is available to the next trophic level

If a sample of gold is a cube what is the length of each edge in centimeters

Which Idea was once accepted is now considered a scientifically inaccurate A. tge nucleus is the center of the atom b. an atom is solid material c. electrons have a negative charge d. electrons are arranged in layers

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?

What characteristics of water allow it to have high surface tension?