Question

fill out the chart: na br kr ca s ga sb atomic # period group # family name # of valence electrons # protons metal, non - metal, metalloids conducts electricity? (yes/no) state at room temp type of ion formed (+/- and number)

Explanation:

Step1: Recall periodic - table info

Look up properties of each element.

Step2: Fill atomic number

Na: 11, Br: 35, Kr: 36, Ca: 20, S: 16, Ga: 31, Sb: 51.

Step3: Fill period

Na: 3, Br: 4, Kr: 4, Ca: 4, S: 3, Ga: 4, Sb: 5.

Step4: Fill group

Na: 1, Br: 17, Kr: 18, Ca: 2, S: 16, Ga: 13, Sb: 15.

Step5: Fill family name

Na: Alkali metal, Br: Halogen, Kr: Noble gas, Ca: Alkaline - earth metal, S: Chalcogen, Ga: Post - transition metal, Sb: Metalloid.

Step6: Fill valence electrons

Na: 1, Br: 7, Kr: 8, Ca: 2, S: 6, Ga: 3, Sb: 5.

Step7: Fill protons

Same as atomic number.

Step8: Fill metal/non - metal/metalloid

Na: Metal, Br: Non - metal, Kr: Non - metal, Ca: Metal, S: Non - metal, Ga: Metal, Sb: Metalloid.

Step9: Fill electricity conduction

Na: Yes, Br: No, Kr: No, Ca: Yes, S: No, Ga: Yes, Sb: Yes.

Step10: Fill state at room temp

Na: Solid, Br: Liquid, Kr: Gas, Ca: Solid, S: Solid, Ga: Solid, Sb: Solid.

Step11: Fill ion formed

Na: + 1, Br: - 1, Kr: None, Ca: + 2, S: - 2, Ga: + 3, Sb: + 3 or - 3.

Answer:

Element	Atomic #	Period	Group #	Family Name	# of valence electrons	# protons	Metal, non - metal, metalloids	Conducts electricity? (yes/no)	State at room temp	Type of ion formed (+/ - and number)
Br	35	4	17	Halogen	7	35	Non - metal	No	Liquid	- 1
Kr	36	4	18	Noble gas	8	36	Non - metal	No	Gas	None
Ca	20	4	2	Alkaline - earth metal	2	20	Metal	Yes	Solid	+ 2
S	16	3	16	Chalcogen	6	16	Non - metal	No	Solid	- 2
Ga	31	4	13	Post - transition metal	3	31	Metal	Yes	Solid	+ 3
Sb	51	5	15	Metalloid	5	51	Metalloid	Yes	Solid	+ 3 or - 3