Question 1

Write the symbol from the element name.
-The symbol for sodium is ________.

Accepted Answer

The answer of Write the symbol from the element name.
-The...

Question 2

The atomic size of atoms ________.
A)increases going across a period
B)decreases going across a period
C)decreases going down within a group
D)does not change going across a period
E)none of the above

Accepted Answer

Atomic size decreases going across a period due to the increase in nuclear charge which pulls the electrons closer to the nucleus, reducing the size.

Question 3

The atomic size of atoms ________.
A)increases going across a period
B)decreases going down within a group
C)increases going down within a group
D)does not change going down within a group
E)none of the above

Accepted Answer

Atomic size increases going down within a group due to the addition of electron shells.

Question 4

Write the symbol from the element name.
-The symbol for mercury is ________.

Accepted Answer

The answer of Write the symbol from the element name.
-The...

Question 5

Ionization energy is ________.
A)the energy an ion acquires from an electron
B)the energy needed to remove the least tightly bound electron
C)highest for metals in Group 1A (1)
D)higher for potassium than for lithium
E)none of the above

Accepted Answer

Ionization energy is the energy required to remove the least tightly bound electron from an atom or ion in the gaseous state. Therefore, option B is correct. Option A is incorrect because ionization energy is not the energy acquired by an ion, but the energy required to remove an electron. Option C is also incorrect because group 1A metals have low ionization energies, not high ones. Option D is partly correct but is not the best answer as it only compares two specific elements and does not provide a general explanation of ionization energy. Therefore, the best answer is option B.

Question 6

Write the symbol from the element name.
-The symbol for sulfur is ________.

Accepted Answer

The answer of Write the symbol from the element name.
-The...

Question 7

Which of the following is the correct electron-dot symbol for carbon?
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Which of the following is the correct...

Question 8

Write the electron arrangement for the atom shown.
-Magnesium

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 9

The ionization energy of atoms ________.
A)decreases going across a period
B)decreases going down within a group
C)increases going down within a group
D)does not change going down within a group
E)none of the above

Accepted Answer

Ionization energy decreases going down within a group because the outer electrons are farther from the nucleus and are more easily removed.

Question 10

Write the electron arrangement for the atom shown.
-Argon

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 11

The metallic character of elements ________.
A)increases going across a period
B)decreases going down within a group
C)increases going down within a group
D)does not change going down within a group
E)none of the above

Accepted Answer

Metallic character increases going down within a group due to the increase in atomic size, which makes it easier for the outer electrons to be lost, enhancing the metallic character.

Question 12

Write the symbol from the element name.
-The symbol for silver is ________.

Accepted Answer

The answer of Write the symbol from the element name.
-The...

Question 13

The metallic character of elements ________.
A)decreases going across a period
B)decreases going down within a group
C)increases going across a period
D)does not change going down within a group
E)none of the above

Accepted Answer

Metallic character generally decreases going across a period from left to right due to the increasing nuclear charge and decreasing atomic radius, which result in stronger attraction between the valence electrons and the nucleus. This stronger attraction makes it harder for the valence electrons to be lost and form positive ions, which is a characteristic of metallic elements. On the other hand, the metallic character increases going down within a group due to the increasing atomic radius and decreasing nuclear charge, which result in weaker attraction between the valence electrons and the nucleus. This weaker attraction makes it easier for the valence electrons to be lost and form positive ions, which is a characteristic of metallic elements.

Question 14

Write the electron arrangement for the atom shown.
-Sulfur

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 15

Write the electron arrangement for the atom shown.
-Phosphorus

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 16

Write the electron arrangement for the atom shown.
-Sodium

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 17

The number of dots in the electron dot symbol of carbon is ________.
A)one
B)two
C)three
D)four
E)five

Accepted Answer

Carbon has four valence electrons, so there are four dots in its electron dot symbol.

Question 18

Write the electron arrangement for the atom shown.
-Chlorine

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 19

Write the symbol from the element name.
-The symbol for copper is ________.

Accepted Answer

The answer of Write the symbol from the element name.
-The...

Question 20

Write the symbol from the element name.
-The symbol for lead is ________.

Accepted Answer

The answer of Write the symbol from the element name.
-The...

Quiz 4: Atoms and Elements

Write the symbol from the element name. -The symbol for sodium is ________.

The atomic size of atoms ________.

The atomic size of atoms ________.

Write the symbol from the element name. -The symbol for mercury is ________.

Ionization energy is ________.

Write the symbol from the element name. -The symbol for sulfur is ________.

Which of the following is the correct electron-dot symbol for carbon?

Write the electron arrangement for the atom shown. -Magnesium

The ionization energy of atoms ________.

Write the electron arrangement for the atom shown. -Argon

The metallic character of elements ________.

Write the symbol from the element name. -The symbol for silver is ________.

The metallic character of elements ________.

Write the electron arrangement for the atom shown. -Sulfur

Write the electron arrangement for the atom shown. -Phosphorus

Write the electron arrangement for the atom shown. -Sodium

The number of dots in the electron dot symbol of carbon is ________.

Write the electron arrangement for the atom shown. -Chlorine

Write the symbol from the element name. -The symbol for copper is ________.

Write the symbol from the element name. -The symbol for lead is ________.