Fluorine has an atomic number of 9. Then n=1 energy level has two elections, and the n=2 energy level has seven electrons. Fluorine's valence is ___.

A) + 2

B) - 2

C) + 1

D) - 1

How many parents are required for asexual reproduction none one two or three

How do platelets aid in the healing of cuts?

Which of the six kingdoms correspond to the domain Eukarya?

Who discovered that geological changes are cyclical? A.) James Hutton B.) Nicholas Steno C.) William Smith D.) Georges Cuvier

Which is not a source of carbon dioxide gas

Differentiate between sexual and asexual reproduction

Which phase of the cell cycle is characterized by a non-dividing cell

Step 6: Measure the Heights of the Plants at the End of Week 3 Use a calculator to compute the average heights of the plants in each group to the nearest centimeter. Week 3 Average Heights Control Group: cm Exper. Group: cm

The nurse is communicating with a client who begins to cry. the nurse places her hand on the client's arm and sits quietly at the client's beside. what mode of communication is the nurse using to offer caring and comfort for the client?

Scientists have a theory about the relationship between climate and biodiversity. Which best describes this theory? Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.