What characteristic of an element is the best indicator for determining what other elements it will react with?
Oops!
Show
Check
Okay!
Check
banana
Go to last place!
Oops!
gift
Win 15 points!
Okay!
shark
Other team loses 15 points!
Okay!
baam
Lose 20 points!
Oops!
10
Why is the group alkali metals the most reactive metals?
Alkali metals only have one valence electron.
Oops!
Check
Okay!
Check
heart
Other team wins 25 points!
Oops!
fairy
Take points!
5
10
15
20
25
gift
Win 10 points!
Okay!
lifesaver
Give 15 points!
Oops!
25
A researcher wants to experiment with an element that reacts like sulfur (S) but has a greater atomic mass. Which elements should the researcher select for the experiment?
Selenium, Tellurium, Polonium
Oops!
Check
Okay!
Check
15
Which of the following lists of properties best describes nonmetals?
Oops!
Show
Check
Okay!
Check
seesaw
Swap points!
Oops!
star
Double points!
Okay!
gift
Win 25 points!
Okay!
baam
Lose 10 points!
Oops!
15
A student states that sodium (Na) has different chemical properties than magnesium (Mg). Do you agree? Justify your answer.
Sodium and magnesium have different numbers of valence electrons.
Oops!
Check
Okay!
Check
15
What must be true of the element represented by the "X"?
Oops!
Show
Check
Okay!
Check
15
When metals, nonmetals, and metalloids are compared according to luster, which is the best description of the appearance of metalloids?
Oops!
Show
Check
Okay!
Check
15
What property do sulfur and oxygen have in common?
Oops!
Show
Check
Okay!
Check
15
Valence Electrons determine the __________________ .
Chemical Properties or Reactivity of the atom.
Oops!
Check
Okay!
Check
15
Based on the Periodic Table, which of the following elements has physical and chemical properties most like potassium?
Oops!
Show
Check
Okay!
Check
15
Why is this family, the Halogens, the most reactive NONMETAL family?
They are 1 electron away from having a full outer shell.
Oops!
Check
Okay!
Check
15
What is the group # and period # for this element?