atomic radius

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

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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.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which periodic group has the smallest atomic radius?

• Alkali metals
• Halogens
• Noble Gases
• Transition metals

Tags

NGSS.HS-PS1-1

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

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.

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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

Which element has the greater ionization energy?

• Strontium
• Boron

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Put the following in order of increasing ionization energy:Tellurium, Sulfur, Selenium

• Tellurium, Sulfur, Selenium
• Selenium, Sulfur, Tellurium
• Sulfur, Selenium, Tellurium
• Tellurium, Selenium, Sulfur

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is ionization energy?

• Energy needed to destroy an atom
• Energy required to remove an electron
• Energy needed to split an electron
• Energy required to add an electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has the greater ionization energy?

• Iodine (I)

• Chlorine (Cl)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2