Trends

Which of these halogens has the largest atomic radius?

• fluorine, F

• chlorine, Cl

• bromine, Br

• iodine, I

Tags

NGSS.HS-PS1-1

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more nuetrons

Order the following in increasing atomic radii: 
Ra, Be, Ca, Rb, H

• Ra, Be, Rb, H, Ca

• Rb, H, Ca, Be, Ra

• Ra, Rb, Ca, Be, H

• H, Be, Ca, Rb, Ra

Tags

NGSS.HS-PS1-1

Put these in increasing order in terms of electronegativity :

• B < N < F

• B < F < N

• N < F < B

• F < N < B

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is the correct order of electronegativity from lowest to highest?

• Zinc, Nickel, Iron, Scandium

• Iron, Nickel, Zinc, Scandium

• Scandium, Iron, Nickel, Zinc

• Scandium, Iron, Zinc, Nickel

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is true for alkaline earth metals as their atomic number increases?

• The atomic radius decreases.

• Ionization energy decreases.

• The number of valence electrons increases.

• The Coulombic attraction increases.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A periodic trend is a feature or pattern that occurs due to the arrangement of the elements on the periodic table. Which of the following is not a correct periodic trend?

• Elements located in the same group have the same number of valence electrons and tend to react in similar ways.

• Elements located within the same period have valence electrons located in the same energy level.

• Metals tend to be grouped together, and take up the majority of the periodic table.

• Non-Metals tend to be grouped together, and can be found primarily on the left side of the periodic table.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following trends is observed as you move from left to right across a period in the periodic table?

• Atomic radius increases

• Ionization energy decreases

• Electronegativity increases

• Metallic character increases

Tags

NGSS.HS-PS1-1

As you move down a group in the periodic table, what happens to the atomic radius?

• It increases

• It decreases

• It remains the same

• It fluctuates

Which trend is observed in the reactivity of alkali metals as you move down the group?

• Reactivity increases

• Reactivity decreases

• Reactivity remains constant

• Reactivity first increases then decreases