Sodium (Na) and potassium (K) are in the same group on the periodic table. Based on their locations, which statement about sodium and potassium is true?
Sodium is less electronegative than potassium.
Sodium has fewer energy levels than potassium.
Sodium has a larger ionic radius than potassium.
Sodium has lower ionization energy than potassium.
2. Multiple Choice
1 minute
1 pt
Which of these elements has the greatest atomic radius?
H
N
Cl
Cs
3. Multiple Choice
1 minute
1 pt
The Periodic Table of the Elements is useful for revealing patterns and trends in the elements. Which statement accurately describes a pattern in the size of atomic radii in the Periodic Table of the Elements?
Atomic radii decrease from left to right across a period and decrease from top to bottom in a group.
Atomic radii increase from left to right across a period and increase from top to bottom in a group.
Atomic radii decrease from left to right across a period and increase from top to bottom in a group.
Atomic radii increase from left to right across a period and decrease from top to bottom in a group.
4. Multiple Choice
1 minute
1 pt
The symbols W, X, Y, and Z represent four elements shown on the outline of a periodic table. Which element has the highest electronegativity?
W
X
Y
Z
5. Multiple Choice
1 minute
1 pt
Fluorine, chlorine, bromine, and iodine all have the same number of valence electrons and have a tendency to gain electrons. Which element has the greatest ionization energy and electronegativity?
fluorine
chlorine
bromine
iodine
6. Multiple Choice
1 minute
1 pt
The ionization potential of an element is the amount of energy required to remove an electron from an isolated atom or molecule. According to the periodic table, which of the following indicates the correct decreasing order of ionization energy?
Li > Na > K > Cs
Na > K > Li > Cs
Li > K > Na > Cs
Cs > K > Na > Li
7. Multiple Choice
1 minute
1 pt
All elements found on the left side of the Periodic Table of the Elements have what properties in common?
They conduct heat and electricity
They are all gases
They are brittle and dull
They are radioactive
8. Multiple Choice
30 seconds
1 pt
Which of these elements has an electron structure most similar to that of element X?
1
2
3
4
9. Multiple Choice
45 seconds
1 pt
Based on their locations in the periodic table, which element has chemical properties most similar to those of calcium, Ca?
beryllium, Be
potassium, K
titanium, Ti
yttrium, Y
10. Multiple Choice
1 minute
1 pt
The number of valence electrons in an element affects the reactivity of that element. Which element listed has the fewest valence electrons?
beryllium (Be)
sodium (Na)
oxygen (O)
neon (Ne)
11. Multiple Choice
1 minute
1 pt
According to the Periodic Table of the Elements, which set of elements has similar properties?
H, C, I
He, H, Al
He, Ne, Ar
Na, Ca, Al
12. Multiple Choice
45 seconds
1 pt
What is the family name of this group of elements?
Alkali metals
Halogens
Noble Gases
Alkali Earth Metals
13. Multiple Choice
45 seconds
1 pt
Which element has 2 valence electrons?
cesium (Cs)
magnesium (Mg)
boron (B)
argon (Ar)
14. Multiple Choice
45 seconds
1 pt
How many Valance electrons does Iodine Have?
6
16
7
17
15. Multiple Choice
1 minute
1 pt
Which of the following will have a lower ionization energy than Scandium (Sc)?
Helium (He)
Titanium (Ti)
Calcium (Ca)
Magnesium (Mg)
16. Multiple Choice
1 minute
1 pt
Which atom has the largest atomic radius?
potassium
rubidium
francium
cesium
17. Multiple Choice
1 minute
1 pt
Electronegativity is...
how good an atom is at attracting electrons
the ability of an atom to lose electrons
the energy required to remove an electron from a specific atom
how easy it is to make friends.
18. Multiple Choice
1 minute
1 pt
Metals have the largest -
atomic radius and electronegativity
electronegativity and ionization energy
atomic radius only
ionization energy and atomic radius
19. Multiple Choice
1 minute
1 pt
Which of the following will have a larger radius than Zinc?
Gallium
Aluminum
Magnesium
Strontium
20. Multiple Choice
1 minute
1 pt
As you move down the periodic table atoms get bigger. This is because ____________.