Answer:
true
Explanation:
Answer:
True the wind causes waves in the ocean
Explanation:
True
False
Answer:
Hi there, the answer is true
Explanation:
:D
The correct answer is A) They all have similar chemical properties.
Explanation:
In chemistry, the periodic table organizes visually the chemical elements. In this, elements are arranged according to different features. In the case of families of the elements, these refer to elements organized in the same column, for example, elements that are in column 18 form a family called noble gases.
These elements form a family because they have chemical properties; in the case of noble gases, this includes similar reactivity and physical features such as color and odor. Besides this, the elements of one family share a similar electron configuration but not the same number of electrons. This means, from the options given the one that identifies the elements that belong to a family is "They all have similar chemical properties".
Each set of elements has an equal number of electrons in the outer orbital. We refer to these as valence electrons. Each element's chemical characteristics are determined by its valence electrons. The correct option is A.
The elements in the same group or column of the periodic table are those whose chemical characteristics are the most comparable. The vertical groups of elements that have the same number of valence electrons and, consequently, comparable chemical characteristics are formed when the elements are arranged in order of atomic number.
Only when matter changes to become a completely other sort of matter can chemical characteristics be measured or observed. They consist of flammability, reactivity, and rusting potential.
Thus the correct option is A.
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Answer:
The correct answer is: cubic or isometric crystal system
Explanation:
The cubic crystal system, also known as the isometric crystal system, is one of the seven crystal systems, that has a cubic unit cell.
It can be classified into three types: simple cubic system, body-centered cubic system (bcc) and face-centered cubic system (fcc).
The salt, sodium chloride, forms isometric crystals and thus is part of the cubic or isometric crystal system.
nitrogen (N)
lithium (Li)
bromine (Br)
potassium (K)
Answer: Potassium (K) has the lowest electronegativity among the given elements.
Explanation:
Electronegativity is a measure of an element's ability to attract electrons towards itself when it is involved in a chemical bond with another element. Potassium has the lowest electronegativity because it has only one valence electron that is located far from the nucleus, making it easier to lose that electron and become a positively charged ion. In contrast, nitrogen, lithium, and bromine have higher electronegativities because they have more valence electrons or the valence electrons are closer to the nucleus, making it more difficult to remove or share electrons.
The element with the lowest electronegativity among the given options is potassium (K). Potassium has an electronegativity value of approximately 0.82 on the Pauling scale, which is the lowest value among the four elements listed. In contrast, nitrogen (N) has an electronegativity of approximately 3.04, bromine (Br) has an electronegativity of approximately 2.96, and lithium (Li) has an electronegativity of approximately 0.98. Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond. The lower the electronegativity value, the less the atom attracts electrons towards itself.
Brainliest?
Answer:
a) Halophile
Explanation:
Halophiles are extremophiles characterized by their ability to thrive in very hot and salty conditions, such as salt flats, salt mines, or hypersaline environments. They have adapted to high levels of salt and can withstand extreme salinity.
Fluorine and chlorine are in the same group of the periodic table (Group 17) because they both have seven electrons in their outermost shell which leads to similar chemical behavior. Fluorine's electronic structure is 2,7, while chlorine's is 2,8,7.
Fluorine and chlorine are in the same group (Group 17) on the periodic table because they have similar electronicstructures, specifically, they both have seven electrons in their outermost (valence) shell. This same property results in similar chemical behaviors as elements in the same group of the periodic table tend to have similar properties because they have the same number of valence electrons.
The electronic structure of fluorine, which has 9 electrons in total, is 2,7. This means there are 2 electrons in the first energy level and 7 in the second. Chlorine, with 17 electrons total, has an electronic structure of 2,8,7. This means there are 2 electrons in the first energy level, 8 in the second, and 7 in the third.
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