Concept explainers
(a)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner
transition elements valence electrons are present in s or psubshells of elements. - For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
(b)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner transition elements valence electrons are present in s or psubshells of elements.
- For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
(c)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner transition elements valence electrons are present in s or psubshells of elements.
- For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
(d)
Interpretation:
The Roman numeral periodic – table group number and valence electrons of
Concept Introduction:
The electrons present in the outermost shell of the atom are known as valence electrons.
Valence electrons are important because:
- The valence electrons decide the reactivity of an element.
- The valence electrons decide the manner in which an atom form a bond with another atom.
- The valence electron in an atom decides the combining capacity of the element.
- Except inner transition elements valence electrons are present in s or psubshells of elements.
- For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.
- The group number is similar to number of valence electrons of an atom.
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General, Organic, and Biological Chemistry
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- Classify each of the following as a binary compound or not a binary compound: a. HF b. OF2 c. H2SO4 d. H2S e. MgBr2arrow_forwardWhich of the following is the best, most-general general description of what a chemically reacting atom does? Select one: O a. It tries to get a noble-gas arrangement of electrons by losing electrons O b. It tries to get a noble-gas arrangement of electrons in the most direct way possible O e. It tries to get an octet of electrons in the most direct way possible O d. It tries to get a noble-gas arrangement of electrons by gaining electrons O e. It tries to get an arrangement of electrons that gives an overall charge of zeroarrow_forward3. During the formation of ionic bonds, with which noble gas does boron become isoelectronic with? 4. What is a diatomic molecule? Give an example of a diatomic element and draw its Lewis dot diagram.arrow_forward
- Give the symbol of four stable ions formed from Main Group elements that are isoelectronic with Argon. d. a. b. с.arrow_forward1. Complete the following table for neutral atoms Name of Elements Calcium N Symbol Atomic Number 14 56 Mass Number 15 42 138 Number of Protons. f. Rn 38 Number of Neutrons 50 16 Number of Electrons 2. What is Dalton's Atomic Theory? 3. What are the elements that contain each of the following numbers of protons? Give their names and chemical symbols. a. 1 b. 76 c. 29 d. 21 e. 95 4. Draw the Lewis dot structures for the following elements. a. Ra b. In c. Se d. Sn e. Csarrow_forwardIN IN IN Polyvalent metal ions. Determine the charge of the transition metal, post transition metal, lanthanide metal, or actinide metal the ionic compound. The chemical symbol for the metal is bolded in red for clarity. Ionic compounds must be electrically neutral. Type the charges of the metal ions into the boxes next to their chemical formulae. 1+ 1. Fe₂O3 FeO ScBr3 GeS₂ MoO; 6. CEF4 7. 8. 2. 3. 5. 2+ 3+ 4+ 5+ 6+ 9. CHEMISTRY Polyvalent Metal Ions PdO PdO₂ NIS 10. Agl 11. SnCl₂F₂ 12. Nb₂0s 13. CoCl3 14. NiBr₂ 15. EuBr₂Cl WO3 PtF4 AuCl AuCl; V₂Ss 16. 17. 18. 19. 20.arrow_forward
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