Homework Answers
21. eight diatomic elements are hydrogen (H), nitrogen (N), oxygen (O), fluorine( F), chlorine (Cl), bromine (Br), Iodine (I), astatine ( At).
diatomic means elements form X2 type molecule.
where X = hydrogen (H), nitrogen (N), oxygen (O), fluorine( F), chlorine (Cl), bromine (Br), Iodine (I), astatine ( At).
22)
Group 4 period 5 element is Zirconium (Zr).
23) 18 elements remains in period 4.
24) 32 elements are remains in period 5.
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21. What are the 8 diatomic elements? What does it mean to be diatomic? Answer the...
(a) How many elements exist as diatomic gases at room temperature and pressure. (b) What type...
(a) How many elements exist as diatomic gases at room temperature and pressure. (b) What type of elements tend to form cations when ionized? (c) Provide the name(s) for the metalloids that have symbols not based on English names. (d) What is t common charge for ions of the chalogens? (e) True or false: Fluorine gas is the least massive noble gas. () How many electrons does a stannous ion have? (g) True or false: A chlorine-35 atom has an...
18) From the following elements, one is not naturally diatomic molecule b- Nitrogen a-Oxygen d- Copper c- lodine 19...
18) From the following elements, one is not naturally diatomic molecule b- Nitrogen a-Oxygen d- Copper c- lodine 19) In the element Radium Ra, the number of protons, neutrons and electrons are respectively b-88, 88, 226 a- 88, 138, 88 d- 138, 88, 88 c-88, 226, 88 20) The empirical formulas of glucose CaHi:O, is b- CHO a- CiaHaO12 d-CH O c-CH:0 21) The compound NHa is a: b-A polyatomic cation a- A monoatomic cation d-A polyatomic anion c- A...
Can someone explain the graph to me I dont know how to read it to answer the questions
can someone explain the graph to me I dont know how to
read it to answer the questions
Atomic radius Nbonding The radius of an atom describes the distance between the nucleus and the outermost electron. This distance is very small so it is often reported in picometers (101 m) or angstroms (10-10 m). One way of measuring the atomic radius is to observe the distanc between bonding atoms. The distance between the nuclei of the bonding atoms is equal...
Lewis Diagrams for Atoms of Representative Elements by Period What are "E", if each of the following atomic electro...
Lewis Diagrams for Atoms of Representative Elements by Period What are "E", if each of the following atomic electron-dot diagrams corresponds to a sixth period, representative element? Representative elements are those that belong to the groups 1,2,and 13-18 (IA - VIIIA) of the Periodic Table. Also called Main Group elements, they are characterized by having their outermost or valence electrons in s and p subshells. Determine the element's identity in each case. Enter the chemical symbols for the elements, in...
PERIODIC TABLE REVIEW WORKSHEET 1. Match the man with his contribution to (A) Lothar Meyer with...
PERIODIC TABLE REVIEW WORKSHEET 1. Match the man with his contribution to (A) Lothar Meyer with his contribution to the Periodic Table: Doberiner (A) groups of 3.elements, called triads (C) Dmitri Mendelevey (8) graphed atomic weight Vs atomic volune.meyer nendeleyev (c) properties repost every oth element-Newlanas (C) proper (E) Henry Moseley (D) used X-rays to define "atomic numbers'-moseley (E) "periodic law" based on atomic weights-menckeleen 2. Identify an A periodic tables (A) period (D) transition metal (G) inert gas (Group...
Font Paragraph F Styles Data Sheet Table 1: Periodic Trends Periodicity Observation What are the Group...
Font Paragraph F Styles Data Sheet Table 1: Periodic Trends Periodicity Observation What are the Group 1 elements called? Within a group, what happens to the atomic radius as you go down the column? Within a period, what happens to the atomic radius as the atomic number increases? What is the general trend of electronegativity as you go left to right across the periodic table? What is the general trend of electronegativity as you go down the periodic table? What...
3. Describe the location (group and period) of the following metals and nonmetals on the periodic...
3. Describe the location (group and period) of the following metals and nonmetals on the periodic table. Element Group Period Kr Fr 4. Write the complete chemical symbol (including the mass number, atomic number, and charge if any) of the element that corresponds to the following subatomic particles: a) p =1, e = 1, and nº = 0 b)pt = 36, e = 36, and nº = 48 c)pt = 26, e- = 23, and nº = 30 d) p...
21. Which of the following fourth-row elements could be in the below ion? a. Geb )...
21. Which of the following fourth-row elements could be in the below ion? a. Geb ) As Se d) Kre ) none of these 2- 22. Consider a molecule with the below connections. When a valid electron dot structure is written, how many double bonds and how many unshared electrons will the molecule contain? 00 -0-0-0-0-H Double bonds: Unshared electrons: 23. The plastic explosive C4 contains the molecule cyclotrimethylenetrinitreamine (commonly called RDX for Royal Demolition explosive). The molecule is shown...
Can you please help solve and explain this...Thanks The Mini Mental State Examination (MMSE) is a...
Can you please help solve and explain this...Thanks The Mini Mental State Examination (MMSE) is a commonly used test for diagnosing memory impairment in adults. This test is sometimes used in clinical settings as a part of the process for diagnosing dementia. A person’s cognitive status is determined by comparing his or her raw score with the descriptive statistics of a norm group of test takers of similar ages and educational levels. Imagine that you had administered the MMSE to...
20. An atom of which of the following elements has the smallest ionization energy? A. CI...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
(a) How many elements exist as diatomic gases at room temperature and pressure. (b) What type of elements tend to form cations when ionized? (c) Provide the name(s) for the metalloids that have symbols not based on English names. (d) What is t common charge for ions of the chalogens? (e) True or false: Fluorine gas is the least massive noble gas. () How many electrons does a stannous ion have? (g) True or false: A chlorine-35 atom has an...
18) From the following elements, one is not naturally diatomic molecule b- Nitrogen a-Oxygen d- Copper c- lodine 19) In the element Radium Ra, the number of protons, neutrons and electrons are respectively b-88, 88, 226 a- 88, 138, 88 d- 138, 88, 88 c-88, 226, 88 20) The empirical formulas of glucose CaHi:O, is b- CHO a- CiaHaO12 d-CH O c-CH:0 21) The compound NHa is a: b-A polyatomic cation a- A monoatomic cation d-A polyatomic anion c- A...
can someone explain the graph to me I dont know how to
read it to answer the questions
Atomic radius Nbonding The radius of an atom describes the distance between the nucleus and the outermost electron. This distance is very small so it is often reported in picometers (101 m) or angstroms (10-10 m). One way of measuring the atomic radius is to observe the distanc between bonding atoms. The distance between the nuclei of the bonding atoms is equal...
Lewis Diagrams for Atoms of Representative Elements by Period What are "E", if each of the following atomic electron-dot diagrams corresponds to a sixth period, representative element? Representative elements are those that belong to the groups 1,2,and 13-18 (IA - VIIIA) of the Periodic Table. Also called Main Group elements, they are characterized by having their outermost or valence electrons in s and p subshells. Determine the element's identity in each case. Enter the chemical symbols for the elements, in...
PERIODIC TABLE REVIEW WORKSHEET 1. Match the man with his contribution to (A) Lothar Meyer with his contribution to the Periodic Table: Doberiner (A) groups of 3.elements, called triads (C) Dmitri Mendelevey (8) graphed atomic weight Vs atomic volune.meyer nendeleyev (c) properties repost every oth element-Newlanas (C) proper (E) Henry Moseley (D) used X-rays to define "atomic numbers'-moseley (E) "periodic law" based on atomic weights-menckeleen 2. Identify an A periodic tables (A) period (D) transition metal (G) inert gas (Group...
Font Paragraph F Styles Data Sheet Table 1: Periodic Trends Periodicity Observation What are the Group 1 elements called? Within a group, what happens to the atomic radius as you go down the column? Within a period, what happens to the atomic radius as the atomic number increases? What is the general trend of electronegativity as you go left to right across the periodic table? What is the general trend of electronegativity as you go down the periodic table? What...
3. Describe the location (group and period) of the following metals and nonmetals on the periodic table. Element Group Period Kr Fr 4. Write the complete chemical symbol (including the mass number, atomic number, and charge if any) of the element that corresponds to the following subatomic particles: a) p =1, e = 1, and nº = 0 b)pt = 36, e = 36, and nº = 48 c)pt = 26, e- = 23, and nº = 30 d) p...
21. Which of the following fourth-row elements could be in the below ion? a. Geb ) As Se d) Kre ) none of these 2- 22. Consider a molecule with the below connections. When a valid electron dot structure is written, how many double bonds and how many unshared electrons will the molecule contain? 00 -0-0-0-0-H Double bonds: Unshared electrons: 23. The plastic explosive C4 contains the molecule cyclotrimethylenetrinitreamine (commonly called RDX for Royal Demolition explosive). The molecule is shown...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
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