Molecules move the fastest in gas
Answer:
elements have the same number of valence electrons and similar chemical properties.
Explanation:
they have the same number
The best answer is A.
The alimentary canal also called the digestive tract is the pathway by which food enters the body and solid wastes are expelled. The alimentary canal includes the mouth, pharynx esophagus, stomach, small intestine, large intestine and anus.
Food is converted into essential nutrients that are absorbed into the body and eliminates unused waste material. It is essential to good health because if the digestive system shuts down, the body cannot be nourished or rid itself of waste.
The alkali metals are lithium, sodium, potassium, rubidium, cesium and francium, and the alkaline earth metals are beryllium, magnesium, calcium, strontium, barium and radium. Hydrogen is placed on the periodic table<span> above </span>group<span> 1a but is not considered part of the </span>group<span>.
Refer to: </span>https://www.reference.com/.../group-1a-group-2a-elements-common-94c6bc654f3d5a4...
