15 Questions
What is required for an atom to form an ion?
Gain or lose an electron
Which of the following statements is true about a neutral atom?
It has the same number of protons and electrons
Why does an atom become positively charged when it loses an electron?
It has fewer electrons than protons
What type of bond is formed between sodium (Na) and chlorine (Cl) in sodium chloride (NaCl)?
Ionic bond
How do ions become stable in a chemical reaction?
By bonding with oppositely charged atoms
What is the term used for the electrons in the outermost energy shell that are involved in chemical reactions?
Valence electrons
Which rule states that the maximum number of valence electrons in the outermost energy shell is 8?
Octet rule
Which type of ion forms when an atom gains electrons and has an overall negative charge?
Anion
What is the charge on a cation and why?
+1 charge because it has more protons than electrons
How does an atom become stable as an anion?
By gaining electrons to fill the outer energy shell
What is the general trend for metals and nonmetals in terms of gaining or losing electrons?
Metals tend to lose electrons, while nonmetals tend to gain electrons.
How do metals achieve stability through electron loss?
By losing electrons from their outer energy shell.
What is the charge of a nonmetal with 6 valence electrons after gaining the necessary electrons?
-2
Why does a metal ion have a positive charge?
It loses valence electrons, leading to more protons than electrons.
How does a nonmetal achieve stability through electron acceptance?
By gaining electrons to add to its outermost energy shell.
Learn how ions are formed from neutral atoms by gaining or losing electrons. Understand the concept of protons, neutrons, and electrons in an atom. Explore how each element on the periodic table has a unique number of these subatomic particles.
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