Question

element symbol | element name | electron configuration | # of valence electrons | will prefer to: a. gain electrons b. lose electrons c. neither | # of electrons to needed to gain/lose to complete outer shell
na | sodium | 2 - 8 - 1 | 1 | lose | 1
cl | chlorine | 2 - 8 - 7 | 7 | gain | 1

ar | | | | |

ne | | | | |

o | | | | |
be | | | | |

f | | | | |
li | | | | |

Explanation:

Step1: Fill Arsenic (Ar) details

Element Name: Argon; Electron Configuration: 2-8-8; # of Valence electrons: 8; Prefer: neither; Electrons needed: 0

Step2: Fill Neon (Ne) details

Element Name: Neon; Electron Configuration: 2-8; # of Valence electrons: 8; Prefer: neither; Electrons needed: 0

Step3: Fill Oxygen (O) details

Element Name: Oxygen; Electron Configuration: 2-6; # of Valence electrons: 6; Prefer: gain; Electrons needed: 2

Step4: Fill Beryllium (Be) details

Element Name: Beryllium; Electron Configuration: 2-2; # of Valence electrons: 2; Prefer: lose; Electrons needed: 2

Step5: Fill Fluorine (F) details

Element Name: Fluorine; Electron Configuration: 2-7; # of Valence electrons: 7; Prefer: gain; Electrons needed: 1

Step6: Fill Lithium (Li) details

Element Name: Lithium; Electron Configuration: 2-1; # of Valence electrons: 1; Prefer: lose; Electrons needed: 1

Answer:

Element Symbol	Element Name	Electron Configuration	# of Valence electrons	Will prefer to: a. gain electrons b. lose electrons c. neither	# of electrons to needed to gain/lose to complete outer shell
Cl	Chlorine	2-8-7	7	gain	1
Ar	Argon	2-8-8	8	neither	0
Ne	Neon	2-8	8	neither	0
O	Oxygen	2-6	6	gain	2
Be	Beryllium	2-2	2	lose	2
F	Fluorine	2-7	7	gain	1
Li	Lithium	2-1	1	lose	1