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Write the electron configuration for these elements…. Label each element from their electron configuration. Nitrogen (N) Sulfur (S) Mangenese (Mn). 2. 2. 6. 2. 6. 2. 1s 2s 2p 3s 3p 4s 1s 2s 2p 3s 3p 1s 2s 2p 3s 3p 4s 3d 4p 5s. 2. 2. 6. 2. 5. 10. 1. 2. 2.

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write the electron configuration for these elements

Write the electron configuration for these elements…

Label each element from their electron configuration.

Nitrogen (N)

Sulfur (S)

Mangenese (Mn)

2

2

6

2

6

2

1s 2s 2p 3s 3p 4s

1s 2s 2p 3s 3p

1s 2s 2p 3s 3p 4s 3d 4p 5s

2

2

6

2

5

10

1

2

2

6

2

6

2

6

quick review
Quick Review
  • The octet rule
    • atoms tend to lose or gain electrons in order to attain a full valence shell
  • Because electrons are negatively charged…
    • an atom becomes positively or negatively charged as it loses or gains an electron, respectively.
  • Any atom or group of atoms with a net charge (whether positive or negative) is called an ion.
  • A positively charged ion is a cation
  • A negatively charged ion is an anion.
atomic size atomic radius
Atomic Size (Atomic Radius)

distance between an atom's nucleus and its valence electrons.

DECREASING

INCREASING

atomic size atomic radius1
Atomic Size (Atomic Radius)

distance between an atom's nucleus and its valence electrons.

More Stable

Sodium

Chlorine

Increasing energy levels

so electrons are farther from nucleus

Cesium

ionization energy
Ionization Energy

the energy it takes to fully remove an electron from the atom

INCREASING

DECREASING

ionization energy1
Ionization Energy

the energy it takes to fully remove an electron from the atom

More Stable

Sodium

Chlorine

Not as tightly bound to

the nucleus

Cesium

electronegativity
Electronegativity

the ability of an atom to attract the electrons of another atom when bonded

INCREASING

DECREASING

electronegativity1
Electronegativity

the ability of an atom to attract the electrons of another atom when bonded

Gain (attract) electrons

to reach octect rule

Sodium

Chlorine

More shielding occurring

So less attractive forces

Cesium