By the time he had gotten to the very last page of the book, both children were completely out. Mark leaned back delicately to place the book on the floor. Mabel stirred, but simply pressed herself closer to Mark as he brought his arm back around to hold her close. Will was completely passed out in Bridgetâs arms, his mouth slack and hair mussed.
it's an element that can form a molecule with one other atom of that element. the element exists in molecules made up of two atoms hence the 'di' in diatomic. There are seven elements like this: hydrogen, oxygen, chlorine, iodine, bromine, fluorine, nitrogen! It is an element that is found bonded to itself naturally.
Lesson Summary. Diatoms are single-celled algae that form a silica-based cell wall. They are broken up into two major groups, the centric diatoms and the pennate diatoms, based on the form of their frustule.Diatoms live in all aquatic environments, including the ocean, freshwater lakes, and moist soils.esson Summary. Diatoms are single-celled algae that form a silica-based cell wall. They are broken up into two major groups, the centric diatoms and the pennate diatoms, based on the form of their frustule.