Periodic Table Trends

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

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.

The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

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

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. 

Tags

NGSS.HS-PS1-2

As you look down a group, electronegativity

• increases

• decreases

As you look from left to right across a period, electronegativity

• increases

• decreases

Which has the greater EN: 
N or C?

• C
• N

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which has the greater EN: 
H or F?

• H
• F

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

A student drew a dot cross diagram with 7 valence electrons. Which of the following elements might have the student drawn?

• Cl (Chlorine)

• Ne (Neon)

• N (Nitrogen)

• Li (Lithium)

Tags

NGSS.HS-PS1-1