Chemistry: Periodic Trends

Question 1

Looking at Group 2A of the periodic table, which of these element probably has the lowest ionic radius?

Accepted Answer

beryllium

Question 2

Which element in period 4 has the highest electronegativity?

Accepted Answer

bromine

Question 3

What would you predict about the ionization energies of these elements?

Accepted Answer

Na > K > Rb

Question 4

The most electronegative elements are:

Accepted Answer

found in the upper right corner of the periodic table

Question 5

What information do you need to make predictions on the periodic table?

Accepted Answer

element relative position

Question 6

Which element has largest first ionization energy if fluorine in second, chlorine in the third, and bromine in third?

Accepted Answer

fluorine

Question 7

How do you write periodic table in Spanish?

Accepted Answer

tabla periódica

Question 8

Which group 2A element has the largest ionic radius?

Accepted Answer

barium

Question 9

Which group 4A element has the highest ionization energy?

Accepted Answer

carbon

Question 10

Looking across period 4 of the periodic table, which element should have the largest atomic radius?

Accepted Answer

potassium

Question 11

Sodium atom loses an electron to form a sodium ion (Na+). Which statement is correct with respect to its atomic radius?

Accepted Answer

The sodium ion has a smaller radius than the atom.

Question 12

In process of ionization, what is relationship between second ionization energy (I2) and third ionization energy (I3)?

Accepted Answer

I2 < I3

Question 13

Determine which element is less electronegative from Fr, Ag, S and Cl

Accepted Answer

Fr

Question 14

Which property determines an atom’s ability to attract electrons shared in a chemical bond?

Accepted Answer

electronegativity

Question 15

Which statement best describes the electronegativity of an element?

Accepted Answer

Electronegativity of an atom is ability to attract electrons during bonding

Question 16

Which of these elements has smallest atomic size if sodium is followed by magnesium, aluminum, silicon, and phosphorus?

Accepted Answer

phosphorus

Question 17

Consider the elements that are in period 3. How are the first ionization energies of these elements related?

Accepted Answer

sodium < aluminum < chlorine

Question 18

Which of these elements in group 1A has the largest atomic radius?

Accepted Answer

cesium

Question 19

Electronegativity refers to

Accepted Answer

the ability of an atom to attract the e- toward itself

Question 20

Fluorine has a lower electronegativity than ___________

Accepted Answer

none of these answers are correct

Questions 20