Periodicity is best defined as: the fact that elements increase in atomic mass in a regular way. the repeating nature of physical and chemical properties with increasing atomic number. the regular growth of atomic size with atomic mass. the consistent decrease of nuclear charge with atomic mass. the repeating nature of atomic nuclear structure.
Answers
Answer:
Periodicity is best defined as:the repeating nature of physical and chemical properties with increasing atomic number.
Explanation:
The elements present in nature or discovered so far are arranged in the form of a table known as periodic table. This creation of table was started with previous scientists like
i) Dobereiner's law of triads: according to it the atomic mass of middle element is average of atomic mass of side elements.
ii) Newland's law of octave: the properties of elements are repeated after seven elements.
iii) Mendleev's periodic table: it was a regular arrangement of by then discovered elements based on their atomic mass.
Now
We have periodic table known as long form or modern periodic table. This table is based on atomic number. According to it , there is periodicity in the physical and chemical properties of elements if they are arranged in certain groups and periods based on their atomic number.
Related Questions
What is the mass of an aluminum cylinder that has a volume of 1.50m3
How can compact fluorescent bulbs help the environment? (2 points) They will create new industry. The will use less energy overall. They will further science and technological development. They will provide society with a product that is in short supply.
________ are molecules whose general structure includes a central carbon with a carboxyl group, an amine group, a hydrogen molecule, and a residual (r) group.
Consider this molecular‑level representation of a mixture of gases. There are three gas particles containing two spheres. There are six gas particles containing a single sphere of a different color. There are five gas particles containing a single sphere of a third color. If the partial pressure of the diatomic gas is 0.330 atm, what is the total pressure?
Answers
Answers
(B) calcium and water
(C) zinc and hydrochloric acid
(D) zinc and concentrated nitric acid
(E) steam and red hot iron
Answers
B. Mg, Sr, and Ba
C. N2, O2, and F2
D. Ca, Cs, and Cu
Please explain your answer in this case
Answers
The elements that have the most similar chemical properties are .
Further Explanation:
Periodic table:
Elements are arranged in increasing order of their atomic numbers in various rows and columns. Such tabular arrangement is called a periodic table. The elements with the same chemical and physical properties lie in the same group. Horizontal rows are called periods and vertical columns are called groups. There are 18 groups and 7 periods in a periodic table.
Elements are also classified as metals, non-metals, and metalloids in this table. The elements placed at the left side of the table are metals while those placed at the right of the table are non-metals. Metalloids are elements that are placed between metals and non-metals.
Magnesium, strontium, and barium belong to group 2A of the periodic table. These have two valence electrons in their outermost shell. So these three elements have similar chemical properties. But the other given elements do not lie in same group so they have different chemical properties.
Therefore option B is the correct answer.
Learn more:
- Which ion was formed by providing the second ionization energy? brainly.com/question/1398705
- Write a chemical equation representing the first ionization energy for lithium: brainly.com/question/5880605
Answer details:
Grade: High School
Subject: Chemistry
Chapter: Periodic classification of elements
Keywords: magnesium, strontium, barium, Mg, Ba, Sr, periodic table, elements, group, period, chemical properties, similar.
Chemical properties are characteristics of a substance that describe how it interacts or reacts with other substances, leading to changes in its composition or structure. The correct answer is C. N₂, O₂, and F₂.
These properties help define the chemical behavior of a substance and are determined by its chemical composition and atomic/molecular structure.
N₂ (nitrogen gas), O₂ (oxygen gas), and F₂ (fluorine gas) belong to the same group/family on the periodic table, known as group 16 or the oxygen family. Elements within the same group tend to have similar chemical properties because they have the same number of valence electrons, which are the electrons involved in chemical bonding.
In the case of N₂, O₂, and F₂, they all have six valence electrons. This similarity in electron configuration leads to comparable chemical behavior, including their tendency to form covalent bonds, their reactivity, and their ability to gain electrons to achieve a stable octet.
Therefore, the correct answer is C. N₂, O₂, and F₂.
For more details regarding chemical properties, visit:
#SPJ6
Answers
Answers
Answer:
False
Explanation: