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B
C
D
E
100
The elements located on the left side of the periodic table are mostly...
What is metals
100
Which of the following is NOT a property of a nonmetal? ductile; dull; brittle; poor conductor of heat/electricity
What is poor conductor of heat/electricity
100
What do elements in the same group have in common?
What is similar chemical properties
100
What has properties of both metals and nonmetals?
What is metalloids
100
what is the most abundant gas in the Earth's atmosphere?
What is nitrogen
200
to determine the number of electrons you can look at...
What is protons or atomic number
200
To find the number of neutrons you can look at...
What is atomic mass - atomic number
200
what is the most reactive element on Earth?
What is flourine
200
what is the least reactive group of elements on the periodic table?
What is group 18-noble gases
200
what is the most reactive group of elements on the periodic table?
What is group 1-alkali metals
300
if an element is in the far left column of the periodic table. you can conclude that the element is...
What is solid or highly reactive metal
300
which element is the heaviest? Fe, Y, P, Kr
What is Kr
300
which element has the greatest atomic mass? Na, Rb, B, Ni
What is Rb
300
the reactivity of groups 1 and 2 increase with _______ atomic number
What is increasing
300
which element from period 4 has the lowest atomic mass?
What is K
400
what is a property that elements Fe, Co, and NI have in common?
What is transition metals
400
halogens are highly reactive nonmetals. which group combines most readily with them?
What is group 1-alkali metals
400
the reactivity of nonmetals increases as the atomic number is ....
What is decreasing
400
which is not a property of a metal? malleability; luster; ductility; poor conductor of heat/electricity
What is poor conductor of heat/electricity
400
what is the atomic number of lead (Pb)
What is 82
500
what does the atomic number tell you
What is protons/electrons
500
what does the atomic mass tell you
What is how heavy the element is
500
what is the basis for arranging the elements in the modern periodic table?
What is number of protons
500
what is the atomic mass of polonium (Po)
What is 209
500
which is classified as an element? NaOH; Br; HCl; NaCl
What is Br