Describing Trends

Which statement correctly and completely identifies a trend?

• Atomic radius decreases across a period and increases down a group.

• Electronegativity decreases across a period and decreases down a group.

• Ionization energy increases across a period and increases down a group.

• Ionic radius increases across a period and increases down a group.

Tags

NGSS.HS-PS1-1

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.

• the atoms have less mass

• the atoms have more protons.

• the atoms have less electrons.

Tags

NGSS.HS-PS1-1

Atoms that have a high electronegativity, _______________.

• give up their electrons more easily.

• hold on to their electrons more tightly.

• have more electron shells.

Which of the following is NOT a trend that varies periodically in the periodic table?

• Electronegativity

• Ionization energy

• Symbols of elements

• Atomic radius

What trends can you identify in this graph?

• Increase in ridership

• Decrease in ridership

• No change in ridership

• No trend

The atomic radius across period

• decrease from left to right

• Increase from left to right

• decrease from right to left

• stay the same

Tags

NGSS.HS-PS1-1

As you move down a Group on the periodic table, what happens to the size of the atoms?

• they stay the same

• they get larger

• they get smaller

As you move across a row on the periodic table, what generally happens to the atomic radius?

• it decreases

• it increases

• it stays the same

What property is being measured in this diagram?

• Density

• Ionization Energy

• Atomic Radius

• Atomic Mass

Tags

NGSS.HS-PS1-3

Which periodic group has the smallest atomic radius?

• Alkali metals

• Halogens

• Noble Gases

• Transition metals