What class of elements lies along the “staircase” line in theperiodic table? How do their properties compare with those ofmetals and nonmetals?

Q: A main group element with the valence electron configuration 2s22p3 is in periodic group__________…

A: Given electronic configuration is 2s22p3

Q: A main group element with the valence electron configuration 2s1 is in periodic group __________.It…

A: Since, the electronic configuration of the element is given as 2s1 which signifies that the element…

Q: Before Moseley’s discovery in 1913, the periodic law stated that physical and chemical properties…

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Q: A representative element (Z) forms an ion with a 2+ charge.  What is the  a)  Roman Numeral group…

A: Oxidation state or oxidation number is the number of electrons that are either gained or lose by an…

Q: Show the locations of (a) alkali metals, (b) alkalineearth metals, (c) the halogens, and (d) the…

A: Since you have posted questions with multiple subparts, we will solve the first three sub parts for…

Q: Can ions of different elements have the same number of protons?

A: There are 3 subatomic particles which are electrons, protons and neutrons. The positively charged…

Q: An atom of sulfur has 6 electrons in the third, outer shell. What is the maximum number of electrons…

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Q: Which of the following in the picture attached has a carbon atom with a partial negative charge?

A: Partial charges on atoms making bond arises due to the electronegativity difference between the…

Q: Some sports bottles are made of Lexan, aplastic containing a compound of the elements…

A: Some sports bottles are made of Lexan, a plastic containing a compound of the elements chlorine,…

Q: Compare the-chemical reactivity of calcium and magnesium. Explain the red litmus paper result. Can…

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Q: Which of the following elements has the highest first ionization energy?

A: Ionisation energy: the amount of energy required to remove of an electron from a valency shell of…

Q: Which two elements in the fourth period violate the original periodic law as stated by Mendeleev?

A: The Mendeleev arranged the elements according to their increasing atomic weights, similarities…

Q: how to write ionic formulas with transition metals? Provide with example.

A: Transition metals are d-block elements placed between s-block and p-block elements in the periodic…

Q: Which group of the periodic table is known as the alkalimetals? List their symbols.

A: The periodic table gives the arrangement of elements in the order of increasing atomic numbers. It…

Q: Which group of the periodic table is known as the noblegases? List their names.

A: The periodic table is the arrangement of elements in the order of the increasing atomic number. The…

Q: One isotope of hydrogen is called protium. Its symbol is: bydroge protum) What is the term used for…

A: Isotopes refer to those elements which have same atomic number but different mass numbers. In other…

Q: What are some characteristic properties of elements to theleft of the elements along the…

A: The staircase in the periodic table consists of metalloids, which differentiates the metals and…

Q: In the periodic table of theelements, elements in a single column have the samenumber of electrons…

A: In the periodic table, the number directly below each element is its atomic number. The number above…

Q: The Atomic Number is the number of protons an element has, if that element has no charge, it will…

A: An atom basically consists of proton, neutrons and electrons. The protons and neutrons are present…

Q: Discussing this chapter, a classmate says, “Since elementsthat form cations are metals and elements…

A: The given data: The given statement is - Since elements that form cations are metals and elements…

Q: family of elements in the periodic table and how are they differentiated/ distinct from each other?

A: The terms element family and element group are used to describe sets of elements sharing common…

Q: arrange the following elements in order of decreasing ionization : Nitrogen, Arsenic, Antimony…

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Q: Helium is an inert gas, meaning that it doesn't readily combine with other elements. What five other…

A: Given, Helium is an inert gas, meaning that it doesn't readily combine with other elements.

Q: Which of the following applies to the electron?

A: A atom consists of protons , neutrons and electrons.prptons and neutrons are existing in nucleus.…

Q: Elements that lie on the left side of the periodic table are generally non-metals?

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Q: Which of the following characteristics DOES NOT DESCRIBE atoms on the top right of the periodic…

A: ans: D Bigger ,more rings 1 or 2 valence electrons REASON: In periodic table from left to right…

Q: Which of the following elements would you expect to be most similar: nitrogen, chlorine, barium,…

A: Elements belonging to the same group in the periodic table display similar properties.

Q: draw a shell model of a lithium atom which has three protons then predict wether the majority of…

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Q: Hello, sorry I think I was a bit bland with the question. In the periodic descriptions attached…

A: A question based on periodic properties that is to be accomplished.

Q: Define all the terms below

A: Since we know that when we write a chemical equations for example  AgNO3(aq) + NaCl(aq) —- AgCl↓ +…

Q: What are the elements in the A columns of the periodic table called a.Main group elements b.…

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Q: Highest to lowest ionization energy

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Q: Consider the following elements: chromium, tungsten, yttrium, vanadium, indium Which one does not…

A: The periodic table of elements consists of different blocks namely s, p, d, and f.  s-block -…

Q: Do nonmetals tend to gain or lose electrons? Do theybecome cations or anions?

A: Is nonmetals tend to gain or lose electrons has to be given,

Q: ving: Why are the elements' atomic masses not in strict increasing order in the periodic table even…

A: As per the policy, we are only allowed to answer only 1st question. To get the answer of other…

Q: What is the formula of cadmium oxide?

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Q: Completely the followin

A: Modern periodic table is divided into 7 periods and 18 groups  Based on differenciating electron…

Q: Horizontal rows in the periodic table are referred to by what two terms?

A: Periodic table is a systematic arrangement of chemical elements on the basis of their electronic…

Q: What is the predicted Ionic charge for a Ba ion? How am I supposed to identify this???   Similarly,…

A: The term ionic charge refers to the electric charge carried by an ion by gaining or losing electrons…

Q: Which of the following elements would we expect to be most similar: nitrogen, chlorine, barium,…

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Q: Why does ionization energy in crease across a period? a greater number of electrons? b. Greater…

A: The energy that is basically needed to displace an electron (e-) from an atom which is isolates and…

Q: otope is that element which, having same physical properties but diffe memical properties O True O…

A: Isotope are the atoms of same element which are having same number of protons and electrons but…

Q: The periodic table is organized such that elements in the same group have the same ionic charge.…

A: 1- Charge means the element has the tendency to accept 1 electron. This means there will be 7…

Q: By definition, atoms are electrically neutral. Is it possible for atoms of two different elements to…

A: Atoms are electrically neutral, because in the ground state, number of protons and number of…