Electron shells, periodic table, chemical bonds

Question 1

electrons ___________ shells as they orbit around ___________?

Answer 1

occupy, nucleous

Question 2

what is another word for shell?

Answer 2

Valence shell

Question 3

atoms form with other atoms to achieve the 2,8,8 _______ shell? this is known as?

Answer 3

Valence, octet rule

Question 4

the octet rule is?

Answer 4

The octet rule states that atoms tend to form bonds in a way that allows them to have eight electrons in their outermost shell, making them stable.

Question 5

chemical bonds are formed so that each atom can have their __________?

Answer 5

outermost electron shell filled

Question 6

ionic bond is?

Answer 6

one atom donates or recieves electrons to/from another.
ex. sodium chloride (table salt) Na+Cl-

Question 7

an atom is stable when?

Answer 7

all the valence shells are filled

Question 8

covalent bond is?

Answer 8

two atoms share one or more electrons
ex. Methane (CH4) Carbon Dioxide (CO2) Ammonia (NH3)

Question 9

Polar Molecule

Answer 9

electron sharing is unequal
ex water H2O

Question 10

Non Polar Molecule

Answer 10

electron sharing almost equal
ex Methane

Question 11

which element is the most versatile and why?

Answer 11

carbon, it can do 1,2,3 covalent bonds

Question 12

carbon is ______ of our weight

Answer 12

98%

Question 13

covalen bonds can go up to ______ but not up to ________?

Answer 13

3,4

Question 14

electronegativity is defined as ?

Answer 14

the measured desire for an electron

Question 15

when one element is sharing more it becomes ____________, and the one receiving more becomes ___________.

Answer 15

partially negative, partially positive