Periodic Trends

The element with the lowest electronegativity in Period 3 is -

• Na

• Cl

• Ar

• Mg

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NGSS.HS-PS1-1

Which periodic group has the smallest atomic radius?

• Alkali metals
• Halogens
• Noble Gases
• Transition metals

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NGSS.HS-PS1-1

Atomic radius generally increases as we move __________.  

• down a group and from right to left across a period 
• up a group and from left to right across a period 
• down a group and from left to right across a period 
• up a group and from right to left across a period 

Tags

NGSS.HS-PS1-1

Which of these elements has the greatest atomic radius? 

• H
• N
• Cl
• Cs

Tags

NGSS.HS-PS1-1

The symbols W, X, Y, and Z represent four elements shown on the outline of a periodic table.
Which element has the highest electronegativity?

• W
• X
• Y
• Z

Tags

NGSS.HS-PS1-1

Ionization energy is...

• the energy required to add an electron to a specific atom
• how much energy it takes to remove an electron from an atom
• the energy required to shield the outer electrons from the nucleus
• a measure of the ability of an atom to attract electrons

Tags

NGSS.HS-PS1-2

Which atom has the largest atomic radius?

• potassium
• rubidium 
• francium
• cesium

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 neutrons

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

NGSS.HS-PS1-2

Which of these elements has the least attraction for electrons in a chemical bond?

• Oxygen
• Nitrogen
• Fluorine
• Chlorine