Classify the Following Elements

Q9: In an electron-dot structure of an element,

Q18: The atomic mass of an element is

Q45: Consider a neutral atom with 30 protons

Q69: Match the correct symbols with the names

Q74: Classify the following elements.<br>-magnesium<br>A)noble gas<br>B)alkali metal<br>C)nonmetal<br>D)alkaline earth

Q75: Match the correct symbols with the names

Q76: What elements are in hydroxyapatite, Ca₅(PO₄)₃OH ,

Q77: Do the following represent elements in a

Q87: The elements lithium,sodium,and potassium _.<br>A)are isotopes of

Q101: Write the electron arrangement for the atom