Answer: The element is represented as Aluminium-27
Explanation:
Atomic number is defined as the number of protons or number of electrons that are present in an electrically neutral atom.
Atomic number = Number of electrons = Number of protons = 13
Mass number is defined as the sum of number of protons and neutrons that are present in an atom.
Mass number = Number of protons + Number of neutrons = 13 + 14 = 27
Thus the element with atomic number of 13 is aluminium and its mass number is 27. Thus it is represented as Aluminium-27
<em><u>your </u></em><em><u>question:</u></em><em><u> </u></em>
<em>Is questions 1,2,3 right? If not what is the right answers and can someone give me the answer for question 4</em>
<em><u>answer:</u></em><em><u> </u></em>
<em>1</em><em>.</em><em> </em><em>E</em>
<em>2</em><em>.</em><em> </em><em>G</em>
<em>3</em><em>.</em><em> </em><em>Correct </em><em> </em><em>-</em><em> </em><em>F </em>
<em>4</em><em>.</em><em> </em><em>A</em>
<em>5</em><em>.</em><em> </em><em>B</em>
<em>Hope </em><em>this </em><em>helps,</em><em> </em><em>have </em><em>a </em><em>great </em><em>day!</em><em> </em><em>:</em><em>)</em><em> </em>
The correct equation for: iron + sulfur -> iron (III) sulfide is D