periodic table

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.

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Electronegativity is...

• the ability of an atom to attract bonding 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.

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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Sodium (Na) and potassium (K) are in the same group on the periodic table. Based on their locations, which statement about sodium and potassium is true?

• Sodium is less electronegative than potassium. 
• Sodium has fewer energy levels than potassium. 
• Sodium has a larger ionic radius than potassium. 
• Sodium has lower ionization energy than potassium. 

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Fluorine, chlorine, bromine, and iodine all have the same number of valence electrons and have a tendency to gain electrons. Which element has the greatest ionization energy and electronegativity?

• fluorine
• chlorine 
• bromine 
• iodine 

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NGSS.HS-PS1-1

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What is the group number of this atom?

• 2
• 7
• 14
• 15

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Is silicon a metal, nonmetal or metalloid?

• Metal
• NonMetal
• Metalloid

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How the elements are arrange in the periodic table?

• according to alphabetical order

• according to increasing atomic size

• according to increasing molar mass

• according to increasing proton number

Why sodium (Na) and Lithium (Li) come from the same group?

• Both have the same value of principle quantum number (n)

• Both have the same number of valence electrons

• Both are metal elements

• Both are basic oxide