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Activity 2:
A.Z.P.E.N.

Objective: Determine the number of electrons, protons, and neutrons in an atom.

Part A: Directions: Complete the table by determining the mass number (A), atomic number (2), no. of protons (p), no. of electrons (e) and no. of neutrons (n) of the elements. Refer to the Periodic Table at the end of this module.

Element
Mass Atomic Number (A)
Number (2)
Protons (p)
Electrons (e)
Neutrons (n)

Boron (B)
Sodium (Na)
Lead (Pb)
Chlorine (Cl)
Gold (Au)​

Activity 2 AZPEN Objective Determine The Number Of Electrons Protons And Neutrons In An Atom Part A Directions Complete The Table By Determining The Mass Number class=

Sagot :

RRDELEONIN

1.) Boron(B)

Answer:

  • Mass Number: 11
  • Atomic Number: 5
  • Protons: 5
  • Electrons: 5
  • Neutrons: 6

2.) Sodium (Na)

Answer:

  • Mass Number: 23
  • Atomic Number: 11
  • Protons: 11
  • Electrons: 11
  • Neutrons: 12

3.) Lead(Pb)

Answer:

  • Mass Number: 208
  • Atomic Number: 82
  • Protons: 82
  • Electrons: 82
  • Neutrons: 126

4.) Chlorine (CI)

Answer:

  • Mass Number: 35
  • Atomic Number: 17
  • Protons: 17
  • Electrons: 17
  • Neutrons: 18

5.) Gold(Au)

Answer:

  • Mass Number: 197
  • Atomic Number: 79
  • Protons: 79
  • Electrons: 79
  • Neutrons: 118

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