Tell whether it is an example of an element or a compound. Write the word element if the sample shows characteristics of an element and compound if it shows Characteristic of compound 11. Aluminum
12. Mercury
13. Ferrous Sulfate
14. Sucrose
15. Carbon

Element- Aluminum

Element - Mercury

Compound - Ferrous Sulfate

Compound - Sucrose

Element - Carbon

Explanation:

Element: an element is a pure substance which is composed of only one type of atoms and that cannot be split or broken down into any simpler pure substance.

Examples of elements include:

Aluminum - it is composed of only atoms of aluminium. Each atom has 13 protons

Mercury - it is composed of only atoms of mercury. Each atom has 80 protons

Carbon - it is composed of only atoms of carbon. Each atom has 6 protons

Compound: a compound is a pure substance that is composed of two or more types of atoms (elements) in a fixed and definite proportion and that cannot be split into component elements by simple physical methods but only by chemical methods. Examples of compound include:

Ferrous sulphate: It is composed of atoms of Iron, Sulfur and Oxygen

Sucrose: It is composed of atoms of Carbon, Hydrogen and Oxygen.

explanation:

since this is put under health, i would define "ethical (medical) behavior" the way the oath for doctors is recited.   "first do no harm."

but the term in general means when given a choice between right and wrong, we should always choose right. if we do, then we are practicing ethical behavior.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.