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A. Directions: Use the periodic table to find the element name and its symbol then calculate what is unknown Name of Element Element Symbol Atomic Mass Atomic Number Protons Neutrons Electrons Boron B 11 5 5 6 5 Sodium 24 11 Y 89 39 Copper 29 35 To 98 43 Pb 207 Thallium 204 81​

A Directions Use The Periodic Table To Find The Element Name And Its Symbol Then Calculate What Is Unknown Name Of Element Element Symbol Atomic Mass Atomic Num class=

Sagot :

A. Directions: Use the periodic table to find the element name and its symbol then calculate what is unknown

Explanation:

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