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

Q: How many elements are in the 6th period of the periodic table?

A: Periods are the horizontal rows in the periodic table.

Q: IS THERE A PATTERN TO THE LOCATION OF THE GASEOUS ELEMENTS ON THE PERIODIC TABLE?

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Q: The formulas for the oxides of sodium, magnesium, aluminum, and silicon are, respectively, Na2O,…

A: The chemical formulas for each of the given compounds (metal oxides) are to be predicted based on…

Q: Why did Mendeleev not include neon in his periodic table of 1871?

A: Mendeleev arranged the periodic table in the increasing order of their atomic weights. The elements…

Q: Give the main features of Thomson’s Model for an atom.

A: Thomson's model also called as plum pudding model. J.J. Thomson discovered electron in 1904. In this…

Q: Write the symbol for element and classify it as a metal, nonmetal, or metalloid. sodium

A:

Q: In which group of the periodic table is clement X found?

A: The ionization energy is the amount of energy required to remove a valence electron from the…

Q: Type the chemical symbol for the following elements and classify them as a representative,…

A: s,p,d,f denotes the orbitals where electron fills up from lower energy orbital to higher energy…

Q: Which of the given elements has the most nonmetallic character?

A: In the periodic table, the left side of the periodic table contains metals whereas the right side…

Q: Which of the following elements would be classified as a nonmetal? a.) silicon  b.) francium c.)…

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Q: discuss the atomic size and its corresponding ionic radius between carbon and boron

A: In a periodic table, the size of atom increases down the group due the addition of an extra shell.…

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: Write the symbol and name for the elements located in the periodic table as follows:

A: a. According to the periodic table, the noble gases are located in the group VIIIA (18) means the…

Q: What are the "A" group numbers for Aluminum, Calcium, and Cesium, respectively?

A: In chemistry, a group refers to a column of elements in periodic table. In total there are 18 groups…

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

A:

Q: What class of elements lies along the “staircase” line in theperiodic table? How do their properties…

A:

Q: Explain the contributions of Johann Döbereiner and John Newlands to the organization of elements…

A: Johann Wolfgang Dobereiner was a chemist in the early 1800s, when the periodic table wasn't in…

Q: What is the name of the symbol H?

A: The given symbol H denotes the element Hydrogen.

Q: Use your periodic table to give an example of an element that is/has: a. A metal that is NOT a…

A: The periodic  table is first invented by mendeleev's scientists.  It is based on atomic mass of…

Q: List three ways in which metals and nonmetals differ.

A: Metals and nonmetals are the two categories in the periodic table. Metals are sonorous in nature…

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

A: Halogens are highly eletronegative elements present in 17 group of the periodic table.Th reason for…

Q: Why does the fourth period in the periodic table contain 18 elements?

A: The periodic table is the tabular arrangement of elements which are arranged in the increasing order…

Q: Recognize the important subdivisionsof the periodic table: periods, groups(families), metals, and…

A: Recognize the important subdivisions of the periodic table: periods, groups (families), metals, and…

Q: Describe the main features of Mendeleev’s periodic table?

A: Mendeleev proposed a much more extensive tabulation of elements. The classification system of…

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: Explain the periodic table and list all elements

A: Periodic table: It is a table to display chemical elements. In the modern periodic table there are…

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: where is metalloids located in the periodic table

A: The periodic table is the table in which each element is arranged in increasing order of their…

Q: Explain why the symbol for the element sulfur and the formula for a molecule of sulfur differ.

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Q: What is the most common ion of Lithium? How many neutrons does it have?

A: Most common ion of lithium = ?  Number of neutrons in this ion = ?

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

A: Atom consist of protons, neutrons and electrons.Protons and neutrons are present in nucleus of an…

Q: From the image below, the part of the periodic table that is circled by the orange marker is called…

A: On the left side: They are called the s-block elements. In s -block there are two groups: Group-1…

Q: How would you classify the elements in the leftmost part of the periodic table

A: How the elements in the leftmost part of the periodic table has to be given.

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: Which of the following statements concerning the periodic table is incorrect?   a. All the elements…

A:

Q: Elements of a group in the periodic table

A: The periodic table is the arrangement of chemical elements according to their atomic number. These…

Q: What subshell is being filled for the metalloid elements?

A: Metalloids are the elements that behave metal like and have loosely bound electron in the outermost…

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: After studylng the chemical reactions of many compounds made of carbon, August discovers a chemical…

A: According to the question, we need to determine the missing words in the following phase.

Q: What are the Elements? Classify the features of elements?

A: Given term,      Elements and the features of elements classification,

Q: What is the metalloid in Period 3 on the periodic table?

A: Metalloids :-  Elements whose properties are intermediate between those of metals and non metals are…

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: Elements in the same group tend to have similar characteristics, but some things like tendency to…

A: D) is the correct answer as BARIUM is largest and have greatest tendency to lose electron On moving…

Q: A neutral atom with 9 protons will have how many electrons?

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Q: How elements are grouped in the periodic table ?

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Q: Is gold metal nonmetal or metalloid

A: Gold is a transition metal belonging to Cu and Ag group.

Q: Display the groups of the periodic table and their charges.

A: There are 18 groups in periodic table as follows : Group 1- Alkali metal Group 2- Alkaline earth…