Which electron configuration belongs to Zinc (Zn)?

1s 2 2s 2 2p6 3s 2 3p 6 4s 2 3d 10

1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 8

1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 9

1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 4d 10

Which of the following best describes the process of nuclear fission?

Splitting an atom's nucleus apart

Separating an atom's electrons from its nucleus

Fusing two atomic nuclei together

Splitting an atom's electrons in half

What quantities vary between isotopes of an element?

protons, electrons, and atomic mass

protons, electrons, and atomic number

An atom is electrically neutral when

protons and electrons are the same

protons and neutrons are the same

neutrons and electrons are the same

neutrons balance the protons and electrons

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

The atoms have more energy levels

Atoms that have a high electronegativity, _______________.

hold on to their electrons more tightly.

give up their electrons more easily.

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.

Ionization energy is...

how much energy it takes to remove an electron from an atom

the energy required to add an electron to a specific atom

the energy required to shield the outer electrons from the nucleus

a measure of the ability of an atom to attract electrons

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.

As you move across the periodic table from left to right, the atomic radius decreases. This is because -

the number of protons increases, so attraction to electrons increases

the number of energy levels increases

the number of electrons increases

Francium (Fr) has the lowest ionization energy in Group 1 because -

its 1 valence electron is very far from the nucleus, so little energy is needed to remove it

it has the smallest number of valence electrons

it has the greatest atomic mass

it has the greatest number of protons, so it attracts its electrons the strongest

Chemistry B CP

Authored by Charles Martinez

Chemistry

10th - 12th Grade

NGSS covered

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79 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What atom matches this electron configuration?
1s²2s²2p⁶3s²

Neon

Magnesium

Aluminum

Potassium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is the electron configuration for an oxygen atom?

1s²2s²2p⁶3s²3p⁶4s²

1s²2s²2p⁴

1s²2s²2p⁶

1s²2s²2p⁶3s²3p⁶

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many electrons can the d sublevel hold?

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is this element?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

Argon

Krypton

Selenium

Bromide

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What atom matches this electron configuration?
[Xe] 6s²4f¹⁴5d¹⁰

Mercury

Gold

Platinum

Thallium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the shorthand electron configuration for Sulfur atom?

[Ar] 3p⁴

[He] 3s²3p⁴

[Ne] 3s²3p⁴

[Na] 3s²3p³

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many valence electrons does Chlorine have?

Tags

NGSS.HS-PS1-1

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Chemistry B CP

What atom matches this electron configuration?
1s²2s²2p⁶3s²

Which is the electron configuration for an oxygen atom?

How many electrons can the d sublevel hold?

What is this element?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

What atom matches this electron configuration?
[Xe] 6s²4f¹⁴5d¹⁰

What is the shorthand electron configuration for Sulfur atom?

How many valence electrons does Chlorine have?

How many valence electrons does phosphorus have?

Identify the element in Period 5 that has 1 valence electron?

What element in Period 4 has 5 valence electrons?

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Chemistry B CP

What atom matches this electron configuration?1s2 2s2 2p6 3s2

Which is the electron configuration for an oxygen atom?

How many electrons can the d sublevel hold?

What is this element? 1s22s22p63s23p64s23d104p6

What atom matches this electron configuration?[Xe] 6s2 4f14 5d10

What is the shorthand electron configuration for Sulfur atom?

How many valence electrons does Chlorine have?

How many valence electrons does phosphorus have?

Identify the element in Period 5 that has 1 valence electron?

What element in Period 4 has 5 valence electrons?

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What atom matches this electron configuration?
1s²2s²2p⁶3s²

What is this element?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

What atom matches this electron configuration?
[Xe] 6s²4f¹⁴5d¹⁰