The electronegativity of Cl is the highest in Period 2. Why?

Cl is the smallest and has the greatest effective nuclear charge

Cl is the largest and has the greatest effective nuclear charge

Cl is the smallest and has the lowest effective nuclear charge

Cl is the largest and has the lowest effective nuclear charge

Alkali metals are characterized by their...

valence electrons in the "p" block

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.

The bar graph above represents four elements and their respective ionization energies. Based on the organization of the modern periodic table, how would these elements be found on the periodic table?

They are in the same period with W being furthest right.

They are in the same period with W being furthest left.

They are in the same group with W being furthest to the bottom.

They are in a diagonal line with W being at the bottom right.

Periodic trends

Authored by Christopher Bell

Science

9th - 12th Grade

NGSS covered

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20 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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.

MULTIPLE CHOICE QUESTION

1 min • 14 pts

Which periodic group has the smallest atomic radius?

Alkali metals

Halogens

Noble Gases

Transition metals

MULTIPLE CHOICE QUESTION

1 min • 14 pts

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

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Helium (He)

Titanium (Ti)

Calcium (Ca)

Magnesium (Mg)

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following will have a higher electronegativity than arsenic (As)?

Carbon (C)

Neon (Ne)

Antimony (Sb)

Germanium (Ge)

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Periodic trends

As you move down the periodic table atoms get bigger. This is because ____________.

As you move across the periodic table atoms tend to get smaller because, ______________.

Which periodic group has the smallest atomic radius?

Ionization energy is...

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

Electronegativity is...

Which of the following will have a higher electronegativity than arsenic (As)?

The electronegativity of Cl is the highest in Period 2. Why?

How does the size of atoms change as you move across a period on the periodic table?

Which atom has the lowest electronegativity?

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