Order the following
components of matter from
smallest to largest: compounds,
electrons, elements, protons, and
neutrons.

Explanation:

An atom consists if an electron, proton and a neutron. These are called as subatomic particles.

The mass of electron is

The mass of proton is

The mass of the neutron is

The atomic mass of an element is the sum of protons and electrons. An element is defined as the species that has same number of protons.

A chemical compound is defined as the species that are composed of more than one molecules.

So, the correct order is electrons, protons, neutrons, elements and compounds.

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.