Summarize the acid-base behavior of the main-group metal and nonmetal oxides in water. How does oxide acidity in water change down a group and across a period?

Q: Describe the basic features of the periodic table

A: A table in which the elements are arranged in the increasing order of their atomic number is termed…

Q: Explain the sudden jump in ionization energy for the elements in period 3 and why that jump occurs…

A: The elements in third period are: Na, Mg, Al, Si, P, S, Cl, and Ar.

Q: Which element would have the greater electron affinity, S or O? Explain using the concepts of…

A: S (Sulphur) Atomic number = 16                   Electronic configuaration = 1s2 2s2 2p6 3s2 3p4   O…

Q: Arrange in order of increasing atomic size. (a) the period 3 elements Cl, Na, and Ar (b) the Group…

A: Arrange in order of increasing atomic size. (a) the period 3 elements Cl, Na, and Ar (b) the Group…

Q: What trend did you observe in the reactivity of the halogens from top to bottom in Group 7A? Explain…

A: The size of the nucleus increases down a group (F < Cl < Br < I < At) because the…

Q: Using the periodic table, arrange the following atoms in order of increasing atomic radius. Explain…

A: In period atomic radii decreases as electron added to same shell effective nuclear charge increases.…

Q: Why is there a large jump in atomic radius as you reach the end of a period and move on to the next?…

A: Let us understand the variation in the atomic radius in a very easy way. The ionic radius is half…

Q: Which has a lower ionization energy, an atom of selenium or an atom of tellurium?

A: Ionization energy: Energy required for an isolated gaseous atom to lose one electron to form…

Q: Describe the trends of the element in a periodic table below and explain your answer: i)Electron…

A: i) Electron affinity : The amount of energy released when an electron is added to the neutral…

Q: What are the properties of the element flerovium (the period 7 element in group 14)?

A: Flerovium Flerovium is an atomic number 114 chemical element with the symbol Fl. Flerovium, which is…

Q: Mention 3 general characteristics of the s-block elements that distinguishes them from the other…

A:

Q: Which element forms an acidic oxide? * A calcium B lithium O C magnesium O D sulfur

A: Answer- Sulfur element ( non- metal) forms Acidic oxide . Magnesium , calcium , lithium are metals…

Q: Both the electron affinity and the ionization energy of chlorine are higher than the corresponding…

A: The amount of energy needed for removal of an electron from an atom is called ionization energy,…

Q: Explain why the ionization energy for hydrogen is much higher than that of other Group IA/1…

A: Ionization energy is the extent of energy which is essential to move the loosely bound electron…

Q: 8. A neutral atom of a certain element has 17 electrons. Without consulting a periodic table, (a)…

A: Electrons are negatively charged particles that revolve around the nucleus of the atom in certain…

Q: List the the main-group elements?

A: The periodic table is defined as the representation of the elements classified into 18 groups and 7…

Q: Explain factors influencing the trends in the first ionisation energy and atomic radius, Across a…

A: Explain factors influencing the trends in the first ionisation energy and atomic radius, Across a…

Q: 7.8 What is a main group element? Give names and symbols of four main group elements.

A: In the modern periodic table, the elements have been arranged according to their atomic numbers. The…

Q: exceptions to the periodic trends in ionization energy?

A: Normal trend ; Ionisation energy increases down the group ,due to increases in atomic size and…

Q: Based on the ionization energies of the alkali metals (see Section3.7), which alkali metal would you…

A: The ionization energies decrease as we go down the group of alkali metals. So, li has the highest…

Q: Does the reaction of a main-group nonmetal oxide in water produce an acidic or a basic solution?…

A: All nonmetals form covalent oxides with oxygen that react with water to form acids (or) with bases…

Q: Arrange the following in order of decreasing atomic radius: Sr, O, Si, Cs, S, Ge

A: The atomic radius for a given element can be defined as the measure of the measure of the size of…

Q: Outline the properties that would be expected of the element flerovium (the period 7 element in…

A: The given element is Flerovium. It's atomic number is 114 and it's atomic weight is 289 u.

Q: Which of the following statements is incorrect? (a) The second ionization energy of sulphur is…

A: Ionization energy exhibits periodicity on the periodic table. The general trend for ionization…

Q: why does the change for the atomic radii of the elements in period 3 from sodium to argon look…

A:

Q: Determine whether each element is a main-group element. tellurium

A: The long form of the periodic table is the arrangement of all elements in the increasing order of…

Q: Which has the larger atomic radius of the pairs Na and Be and what is the underlying reason why?

A: Atomic radii  is equal to the distance between the nuclei of an atom and its outermost shell…

Q: Which element below would have the largest atomic radius?* Barium Beryllium Calcium Magnesium

A: Generally in a periodic table form left to right in a period the atomic radius decreases while in a…

Q: Determine whether each element is a main-group element. potassium

A:

Q: (a) Among the nonmetallic elements, the change in atomic radius in moving one place left or…

A: To get:   a) Explain the observations of  movement is automic radius. b)  Arrangement of atom in…

Q: What causes the changes in ionisation energy across period 2  elements?

A: Ionisation energy is the energy required to remove an electron from the outermost shell of an atom.…

Q: The first ionization energy of sodium is 496 kJ/mol. Use Coulomb’s law to estimate the average…

A:

Q: Arrange the following elements in order of increasing atomic radius: Al, B, C, K, and Na?

A: In periodic table, down the group atomic radius increases due to increase in number of shells.…

Q: Describe the relationship between the properties of an element and the number of valence electrons…

A:

Q: It is experimentally observed that electron affinity generally increases from left to right across…

A: Electron affinity is the tendency of an atom to gain an electron in its outermost shell when it is…

Q: Use the periodic table to arrange the following elements in order of increasing first ionisation…

A: Since the element P and S belong to same period 3 and the element O belong the the period above them…

Q: What is the atomic number of the as yet undiscovered element in which the 8s and 8p electron energy…

A:

Q: The electron affinity of each group 5A element is more positive than that of each corresponding…

A: The periodic table can be classified in four blocks; s-block, p-block, d-block and f-block. This…

Q: Explain why atomic radius decreases as you move to the right across a period for main-group elements…

A: Moving towards the right side of the periodic table leads to atomic number increases means there is…

Q: The size of an atom can be expressed by three radii. Name them. Which of these given the highest,…

A: The size of atom in terms of its atomic radii have been widely known by three accepted definitions.…

Q: rank the three anions of the elements F, Cl, O according to their increasing ionic radius, explain…

A: The answer to the following question is-

Q: Arrange th

A: The minimum amount of energy required to remove an electron from outer most shell of an isolated…

Q: What element in period 3 has exactly one empty p-orbital? Write only the atomic symbol for that…

A: Element are species listed in periodic table in increasing order of their atomic number. Also, in…

Q: On the basis of periodic trends, choose the larger atom in each pair (if possible):(a) Sn or I (b)…

A: Given: (a) Sn or I (b) Ge or Po (c) Cr or W (d) F or Se

Q: When considering the first and second ionization energies of rubidium (Rb), the first ionization…

A: For any element, irrespective of its position, the second ionisation energy will always be greater…