Use the periodic table to find the name, atomic number, atomic mass, and the number of outermost electrons for each of the following elements: N, P, As, and Sb.

Respuesta :

Answer:

n- atmoic mass:14.0 atomic number:7  outermost:2

p- atomic mass:30.97 atomic number:15 outermost: 5

as- atm.mass:74.92 atm. num:33 outermost:3

Sb- atm.mass121.76 atm.num:51 outermost:4

Explanation:

From the question given, all element belong to the same group in the periodic table and there names are Nitrogen, Phosphorous, Arsenic and Antimony respectively.

Using the periodic table,

Element N

From the periodic table, the element N is called Nitrogen and it's atomic number is 7 atomic mass is 14, the number of outermost electron in N is 5.

For N

  • Name = Nitrogen
  • atomic number = 7
  • atomic mass = 14amu
  • outermost electron = 5

Element P

From the periodic table, the element P is called phosphorous and it's atomic number is 15, atomic mass is 30.97amu and it has 5 electrons on it's outer shell.

For P

  • Name = Phosphorous
  • atomic number = 15
  • atomic mass = 30.97 amu
  • outermost electron = 5

Element As

From the periodic table, the element As is called Arsenic and it's atomic number is 33 and atomic mass is 74.92 amu and it has 5 outermost or valence electrons.

For As

  • Name = Arsenic
  • Atomic number = 33
  • Atomic mass = 74.92 amu
  • Valance electrons = 5

Element Sb

From the periodic table, the element Sb is called Antimony and it's atomic number is 51 atomic mass is 121.76 amu and it has 5 valence electrons.

For Sb

  • Name = Antimony
  • Atomic Number = 51
  • Atomic mass = 121.76 amu
  • Valence electrons = 5

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