periodic trends and element identification Assessment

Ionization energy increases

• from L to R and from bottom to top

• from L to R and from top to bottom

• from R to L and from bottom to top

• from R to L and from top to bottom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Atomic radius decreases from left to right across a period because from left to right there is

• increasing number of valence electrons

• increasing shielding

• increasing effective nuclear charge

• increasing number of protons in the nucleus

Tags

NGSS.HS-PS1-1

Which of the following will have a lower ionization energy than Scandium (Sc)?

• Helium (He)
• Titanium (Ti)
• Calcium (Ca)
• Magnesium (Mg)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....

• decreases
• increases
• remains the same
• none of the above

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

• Ar
• He
• Kr
• Rn

Tags

NGSS.HS-PS1-1

The element with the highest electronegativity is -

• At

• F

• Cl

• Br

Tags

NGSS.HS-PS1-2

The ionization energy of Na is larger than Cs because...

• Na has a greater effective nuclear charge

• Na has fewer energy levels and less shielding

• Cs has a greater effective nuclear charge than Na

• Cs has more valence electrons than Na

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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.

Tags

NGSS.HS-PS1-1

Which atom has the largest atomic radius?

• potassium
• rubidium 
• francium
• cesium

Tags

NGSS.HS-PS1-1