Unit 2 Atoms and Periodic Table

1

Which subatomic particle is negatively charged?

Neutron

Quark

Electron

Proton

1

What is the subatomic particle that holds a positive charge?

Nucleus

Electron

Neutron

Proton

1

Which particle contributes to an atom's mass but holds no electric charge?

Neutron

Photon

Electron

Proton

1

How can you identify the number of protons in an atom?

By its atomic mass

By its group number

By its atomic number

By its period number

1

What properties characterise the elements in group 1 of the periodic table?

They are alkaline earth metals and react with halogens.

They are noble gases and are inert.

They are alkali metals and are highly reactive.

They are halogens with poor electrical conductivity.

1

Why do group 18 elements rarely engage in chemical reactions?

They don’t have sufficient energy levels.

They have full electron shells.

They lack protons.

They have no neutron.

1

Which group in the Periodic Table contains the Halogens?

Group 2

Group 1

Group 17

Group 18

1

How many neutrons does an atom of Carbon have?

6 neutrons

8 neutrons

12 neutrons

7 neutrons

1

What is the number of neutrons in an atom of Oxygen?

7 neutrons

8 neutrons

6 neutrons

16 neutrons

1

Which electron configuration represents lithium?

1 electron in the first level

3 electrons in the first level

1 electron in the first, 2 in the second

2 electrons in the first level, 1 in the second

1

Choose the correct electron configuration for the boron element:

2 electrons in the first, 2 in the second

3 electrons in the first, 2 in the second

5 electrons in the first level

2 electrons in the first level, 3 in the second

1

What information does the atomic number of an element represent?

Atomic weight

Number of neutrons

Number of electrons

Number of protons in the nucleus

1

How do you determine the number of electron shells in an element?

By its group on the table

By its period on the table

By its atomic mass

By its atomic number

1

Where are metals generally located on the periodic table?

On the right side

On the bottom side

On the top side

On the left side

1

Where are nonmetals generally located on the periodic table?

On the top side

On the left side

On the bottom side

On the right side

1

What does 'staircase line' (metalloids) on the periodic table typically separate?

Different atomic masses

Metals from nonmetals

Gases from solids

Elements in the same period

1

Are halogens - metals, nonmetals or metalloids?

None of the above

Metalloids

Nonmetals

Metals

1

Which of the following statements are true?

Individual atoms can be seen with the naked eye.

The nucleus of an atom contains protons and neutrons.

Protons are located outside the nucleus of an atom.

Electrons are the same size as protons.

1

If an atom is neutral and has six electrons, the nucleus of this atom must contain ____ protons.

five

eight

six

seven

1

Which model represents the correct way to draw the element helium?

Diagram A because the neutrons belong in the nucleus.

Diagram B because the protons belong in the nucleus.

Diagram C because the electrons surround the nucleus.

None of the diagrams above are correct.

1

What is the atomic number of Neon (Ne)?

18

22

20

10

1

What is the atomic mass of Carbon (C)?

6 amu

12.01 amu

24.02 amu

6.01 amu

1

Sarah is drawing a Bohr Model of the element Beryllium. In her model, she drew 2 electrons in the first energy level and 3 electrons in the second energy level. What did she do wrong?

Sarah put only 2 electrons on the first level when she should have put 4.

Sarah put only 3 electrons on the second level when she should have put 4.

Sarah used the neutron number instead of the electron number.

Sarah used the proton number instead of the electron number.

1

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements contrast (different)?
Magnesium:
protons = 12
electrons = 12
neutrons = 12
Chlorine:
protons = 17
electrons = 17
neutrons = 18

Chlorine have a greater mass than magnesium.

The nucleus of chlorine has more protons and neutrons than magnesium.

Magnesium is a metal while chlorine is a nonmetal.

All the above are differences of the two elements.

1

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements compare (alike)?
Magnesium:
protons = 12
electrons = 12
neutrons = 12
Chlorine:
protons = 17
electrons = 17
neutrons = 18

The elements have different structures, but the same mass.

The elements are made up of the same subatomic particles just different amount.

They both have the same atomic number.

Their atoms are completely identical in every way.

Unit 2 Atoms and Periodic Table

Which subatomic particle is negatively charged?

What is the subatomic particle that holds a positive charge?

Which particle contributes to an atom's mass but holds no electric charge?

How can you identify the number of protons in an atom?

What properties characterise the elements in group 1 of the periodic table?

Why do group 18 elements rarely engage in chemical reactions?

Which group in the Periodic Table contains the Halogens?

How many neutrons does an atom of Carbon have?

What is the number of neutrons in an atom of Oxygen?

Which electron configuration represents lithium?

Choose the correct electron configuration for the boron element:

What information does the atomic number of an element represent?

How do you determine the number of electron shells in an element?

Where are metals generally located on the periodic table?

Where are nonmetals generally located on the periodic table?

What does 'staircase line' (metalloids) on the periodic table typically separate?

Are halogens - metals, nonmetals or metalloids?

Which of the following statements are true?

If an atom is neutral and has six electrons, the nucleus of this atom must contain ____ protons.

Which model represents the correct way to draw the element helium?

What is the atomic number of Neon (Ne)?

What is the atomic mass of Carbon (C)?

Sarah is drawing a Bohr Model of the element Beryllium. In her model, she drew 2 electrons in the first energy level and 3 electrons in the second energy level. What did she do wrong?

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements contrast (different)? Magnesium: protons = 12 electrons = 12 neutrons = 12 Chlorine: protons = 17 electrons = 17 neutrons = 18

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements compare (alike)? Magnesium: protons = 12 electrons = 12 neutrons = 12 Chlorine: protons = 17 electrons = 17 neutrons = 18

Which subatomic particle is negatively charged?

What is the subatomic particle that holds a positive charge?

Which particle contributes to an atom's mass but holds no electric charge?

How can you identify the number of protons in an atom?

What properties characterise the elements in group 1 of the periodic table?

Why do group 18 elements rarely engage in chemical reactions?

Which group in the Periodic Table contains the Halogens?

How many neutrons does an atom of Carbon have?

What is the number of neutrons in an atom of Oxygen?

Which electron configuration represents lithium?

Choose the correct electron configuration for the boron element:

What information does the atomic number of an element represent?

How do you determine the number of electron shells in an element?

Where are metals generally located on the periodic table?

Where are nonmetals generally located on the periodic table?

What does 'staircase line' (metalloids) on the periodic table typically separate?

Are halogens - metals, nonmetals or metalloids?

Which of the following statements are true?

If an atom is neutral and has six electrons, the nucleus of this atom must contain ____ protons.

Which model represents the correct way to draw the element helium?

What is the atomic number of Neon (Ne)?

What is the atomic mass of Carbon (C)?

Sarah is drawing a Bohr Model of the element Beryllium. In her model, she drew 2 electrons in the first energy level and 3 electrons in the second energy level. What did she do wrong?

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements contrast (different)? Magnesium: protons = 12 electrons = 12 neutrons = 12 Chlorine: protons = 17 electrons = 17 neutrons = 18

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements compare (alike)? Magnesium: protons = 12 electrons = 12 neutrons = 12 Chlorine: protons = 17 electrons = 17 neutrons = 18

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements contrast (different)?
Magnesium:
protons = 12
electrons = 12
neutrons = 12
Chlorine:
protons = 17
electrons = 17
neutrons = 18

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements compare (alike)?
Magnesium:
protons = 12
electrons = 12
neutrons = 12
Chlorine:
protons = 17
electrons = 17
neutrons = 18

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements contrast (different)?
Magnesium:
protons = 12
electrons = 12
neutrons = 12
Chlorine:
protons = 17
electrons = 17
neutrons = 18

Elements are composed of atoms, such as the elements magnesium and chlorine. How do the structures of these two elements compare (alike)?
Magnesium:
protons = 12
electrons = 12
neutrons = 12
Chlorine:
protons = 17
electrons = 17
neutrons = 18