Which Lewis dot diagram shows an atom that needs 2 more electrons in its outermost shell?

Question

Four choices. Choice A Hydrogen, H, dot on the right. Choice B, carbon, with 1 dot right, one dot bottom, one dot left, one dot top. Choice C, Oxygen. Two dots right, one dot bottom, two dots left, one dot top. Choice F, Fluorine. Two dots right, one dot bottom, two dots left, two dots top.

Question 1 options:

A

B

C

D

Question 2 (1 point)
How does the Periodic Table organize atoms of elements with the same number of valence electrons?

Question 2 options:

in cells

in rows

in columns

in diagonals

Question 3 (1 point)
What is the correct definition of valence electrons?

Question 3 options:

empty spaces in the innermost shell of an atom

electrons in the innermost shell available for bonding

empty spaces in the outermost shell of an atom

electrons in the outermost shell available for bonding

Question 4 (1 point)
What will an atom do if it has 1 to 3 valence electrons?

Question 4 options:

accepts (gains) electrons

donates (loses) electrons

move electrons to a lower shell

move electrons to a higher shell

Question 5 (1 point)
What will oxygen likely do to complete its outermost shell, based on the Lewis dot diagram shown?

An atom labeled oxygen. The nucleus is a three dimensional ball with protons and neutrons. The protons are red and the neutrons are blue. Electrons are around the nucleus in two shells. The first shell has two electrons. The second shell has 6 electrons and 2 open spaces identified as available.

Question 5 options:

accept (gains) electrons

donates (loses) electrons

accept some electrons and give up other electrons

move electrons from the inner shell to the outer shell

Question 6 (1 point)
Which type of bond is the attraction between two oppositely charged atoms or groups of atoms?

Question 6 options:

ionic

covalent

hydrogen

metallic

Question 7 (1 point)
When do covalent compounds occur?

Question 7 options:

only between nonmetals

only between metals

between two or more noble gases

between a metal and a nonmetal

Question 8 (1 point)
Which type of bond forms when two or more atoms share electrons?

Question 8 options:

ionic

covalent

equal

hydrogen

Question 9 (1 point)
How many electrons do MOST atoms seek to have in their outermost shell, causing covalent bonds to form?

Question 9 options:

1

3

4

8

Question 10 (1 point)
Which type of bond occurs between water molecules?

Question 10 options:

ionic

nonpolar covalent

metallic

hydrogen

Answer 1

Here are the answers to your questions based on the information provided:

Question 1: Which Lewis dot diagram shows an atom that needs 2 more electrons in its outermost shell?

• Answer: C (Oxygen. Oxygen has 6 valence electrons and needs 2 more to complete its outer shell.)

Question 2: How does the Periodic Table organize atoms of elements with the same number of valence electrons?

• Answer: in columns (Elements in the same column of the periodic table have the same number of valence electrons.)

Question 3: What is the correct definition of valence electrons?

• Answer: electrons in the outermost shell available for bonding (Valence electrons are the outermost electrons that are involved in chemical bonding.)

Question 4: What will an atom do if it has 1 to 3 valence electrons?

• Answer: donates (loses) electrons (Atoms with 1 to 3 valence electrons will tend to lose them to achieve a full outer shell.)

Question 5: What will oxygen likely do to complete its outermost shell?

• Answer: accept (gains) electrons (Oxygen needs to gain 2 electrons to complete its outer shell.)

Question 6: Which type of bond is the attraction between two oppositely charged atoms or groups of atoms?

• Answer: ionic (Ionic bonds form due to the electrostatic attraction between oppositely charged ions.)

Question 7: When do covalent compounds occur?

• Answer: only between nonmetals (Covalent compounds typically form between nonmetal atoms by sharing electrons.)

Question 8: Which type of bond forms when two or more atoms share electrons?

• Answer: covalent (Covalent bonds are formed through the sharing of electrons between atoms.)

Question 9: How many electrons do MOST atoms seek to have in their outermost shell, causing covalent bonds to form?

• Answer: 8 (Most atoms seek to achieve a stable octet of electrons in their outer shell.)

Question 10: Which type of bond occurs between water molecules?

• Answer: hydrogen (Hydrogen bonds are the attractions between water molecules due to polar covalent bonding.)

Feel free to ask if you have further questions!