what is the elemental form of fluorine? F(g) F- (aq) F+(g) or none of the these?

Q: Which of the following lists contain an alkali metal, a halogen and a metalloid (semi-metal) in that…

A: In the periodic table, alkali metals are Group-1 elements.  Halogens are Group-17…

Q: In which set of elements would all members be expected to have very similar chemical properties?

A: Cu, Ag, Au is the correct option.  Elements belonging to the same group of similar chemical…

Q: Which of the following element will have the greatest difference between IE2 and IE3? He Be Mg Ca

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Q: What is the chemical symbol of the element found in the 4th family and 5th period of the periodic…

A: Carbon family is called 4th family and there elements are C , Si , Ge , Sn , Pb , Fl

Q: Get 3 proton-rich  isotopes and 3 neutron-rich isotopes including the stable isotope (N = Z) of an…

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Q: Even though Si has a larger mass than Al, Si's radius is smaller than Al. Explain why.

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Q: what is the physical stare of Se? physical appearance of Se? what is the color of Se?

A: 1) Physical state of Se:  Selenium is a chemical element with symbol Se and atomic number 34.…

Q: 23U → 23Th + He 2. For each element, what do the top (superscripted) and the bottom (subscripted)…

A: Introduction: In the above reaction nucleus of uranium undergoes alpha decay ,in this nuclear change…

Q: Identify an element that would have similar properties as magnesium (Mg). Explain your choice and…

A: The element that has the similar properties like magnesium is -

Q: Na CI These 2 elements are in the same Period, what Period would it be? 1 18 2

A: Sodium (Na) electronic configurations [ Ne] 3s1 , Last electron is in  3S ,So principal  quantum…

Q: Get 3 proton-rich isotopes and 3 neutron-rich isotopes including the stable isotope (N = Z) of an…

A: 1. Solution - Isotopes - Isotopes are two or more types of atoms that have the same atomic number…

Q: 2.89 In which one of the following pairs do the two species resemble each other most closely in…

A: The answer is option (c), which are C612 and C613. It is because, the chemical properties are the…

Q: Which pair of elements below would be the least similar in their chemical properties?  a) Be-Al…

A: Element in the same group have similar chemical properties. Also same pair of elements shows…

Q: ganization of the Periodic Table Tamera v Read each description in the first column of the table…

A: The Atomic Number 92 is used for Uranium.  (1) An element in period 2 and group 8A - Group 8A is of…

Q: Is this impossible to have element or not? n = 7 ; l = 6 ; m = 5 ; s = - 1/2

A: An electron has wavefunction which is an address

Q: Part B Mendeleev placed thallium (TI) in the same group as lithium (Li), sodium (Na), potassium (K),…

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Q: (a) Are the elements calcium, barium, and radium in the same group or same period in the periodic…

A: A horizontal row in the periodic table is known as periods and a vertical column in the periodic…

Q: LKuipor Bek asderolch Jupiter Mércúry Venus * Uranus Saturn Mars Earth Ceres Neptune Jupiter Pluto…

A: Dwarf planet : Dwarf planet is a celestial body orbiting a star that is massive enough to be rounded…

Q: Q4. Which element is a main-group metal with an even atomic number?(a) K (b) Ca (c) Cr (d) Se

A: To find: The main group metal with an even atomic number.

Q: The first member of a group in the Periodic Table of elements always shows some abnormal chemical…

A: Group is a column in a periodic table and in the first element in the column is the first member of…

Q: Read eacn aescription in the first column of the table below. If any chemical element with atomic…

A: The systematic arrangement of elements in a table is known as periodic table. There are 18 groups…

Q: 9: Which of the following is an alkali metal? A) Zr B) Rb C) Cs D) Te 10: The symbols for Potassium,…

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Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. O

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Q: Choose one element on the periodic table and get all its isotopes, proton-rich isotopes, and…

A: Since the isotopes of an element have the same atomic number and have a different atomic mass.

Q: a ) Eva l u a te t h e expre s s i o n s 2 x 1, 2 x (1 + 3),2 x(1 + 3 + 5), and 2 x (1 + 3 + 5 + 7).…

A: In the expression, the total number of valence electron is calculated in which 2 is the number of…

Q: The elements in Groups 1A(1) and 7A(17) are all quite reac-tive. What is a major difference between…

A: The elements of group 1A and group 7A are reactive elements that form many compounds.

Q: 3) which items listed below have a smaller radius than aluminum? B Cl Ga N S

A: The atomic radius of boron is smaller than aluminium being the first member of group 13 series.

Q: Which of the following statements below is true? O Nat is smaller than Na. O Na* is larger than Na.…

A: Introduction : As per company norms we cannot answer more than one answer per session .So, I have…

Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. I

A: Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals…

Q: Which element would most likely be a shiny solid at room temperature and have a high density? A. Kr…

A: Generally metals are shiny solid at room temperature and have a high density.

Q: Platinum (Pt) has an isotope with a mass number of 195. This isotope has____________  protons…

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Q: Identify each of the following elements as a metal, non-metal, or metalloid: (a) gallium, (b)…

A: In the periodic family: Metals exhibit electropositive character. Non-metals exhibit electronegative…

Q: A biochemist who is studying the properties of certain sulfur (S)–containing compounds in the body…

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: How do you know that an element is a metalloid?

A: A metalloid is an element that has properties that are intermediate between those of metals and…

Q: In which set of elements would all members be expected to have very similar chemical properties? a.…

A: We have given that   In a periodic table element are arranged in order of increasing atomic number,…

Q: Among Cl-, Ar, K+, Ca2+, Br-, Kr, Rb+, and Sr2+, which one has the largest radius?

A: Isoelectronic species are those species which have same number of electrons in them. And the radius…

Q: Read eacn aescription in the first column of the table below. If any chemical element with atomic…

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Q: 3,1,0, + [Kr] 5s' 3d5 [He] 2s? 2p

A: According to guidelines I am supposed to answer first three part only please ask rest of the part as…

Q: 15. (a) b) c) d) Identify the element that is described by the following information. Refer to a…

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Q: Is Ni and Cu  Different elements, isotopes or ions?

A: Isotopes: Each of two or more forms of the same element that contain equal numbers of protons but…

Q: Which groups in the periodic table contain metals, nonmetals, and metalloids?

A: There are 18 groups in a periodic table. On going from left to right, the metallic character…

Q: 5 Elements are -  1) Sodium. 2) potassium 3) calcium 4) magnesium 5)lithium  Rank them from 1…

A: A question based on biological importance of chemical elements that is to be accomplished.

Q: Which of the following atoms has the largest radius? a) F b)Cl c)Li d) Na

A: Which of the following atoms has the largest radius?  a) F b)Cl  c)Li d) Na

Q: 2. An element that has 9 orbitals 5 fully filled, 2 single electrons and 1 empty orbital (a) What is…

A: f) Mg is a metal and can easily lose two electrons. It have properties similar to group 2 elements…

Q: Do isotopes have the same chemistry among each other? Do they have the same electron configuration?

A: Isotopes of an element have same number of protons with different number of neutrons in the nucleus.…

Q: 1.)What is the atomic number for the element that is in group 1A and period 6? 2.) What is the…

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Q: fluorine (F) nitrogen (N) boron (B) iodine (I) Which two elements are in the same group and would…

A: The elements which have the same number of electrons in the outermost shell (or the same number of…

Q: How is the periodic Table arranged? (A) Horizontally ( B) Vertically (C) Atomic Mass. (D) Periods…

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Q: Identify each of the following elements as a metal, nonmetal,or metalloid: (a) phosphorus, (b)…

A: Metals and Nonmetals are different types of materials present around us. Metals (like copper and…