0
Across
1) helium
4) oxygen
5) sodium
7) neon
8) silver
10) calcium
13) uranium
14) chlorine
15) arsenic
17) gold
18) carbon
19) iron
Down
2) lead
3) hydrogen
6) Mercury
7) nitrogen
9) sulphur
11) aluminium
12) copper
15) argon
16) silicon
I just did this puzzle this morning lol. You're welcome - BRI(:
What else can I help you with?
Why is the periodic table called the key of life?
It is called the key of life because all the elements or compounds of the elements of on the periodic table make up the world.
What is the charge on lead with 78 electrons?
+4 On the periodic table, all elements are neutral. And that is the key to this problem. Lead (Pb) on the periodic table has an atomic number of 82. Therefore it has 82 protons. How many electrons would it need to be a neutral atom then? Obviously, 82! So if we have 82 electors and 82 protons we have neutral lead, but we don't have 82 electrons we only have 78. Therefore neutral lead lost negatively charged electrons. When you lose a negative you become more positive. So we have a charge of +4, since 82-78=4. In general the solution to this problem is: (Atomic Number) - (Number of Electrons) = (Net Charge)
What are the application and theories in different branches science?
The periodic table of the elements forms the basis of chemistry, the prevailing theory is that each element is primarily distinguished from another by the number of protons in its atomic nucleus. The primary theory of cosmology is the "big bang" theory. This is not a particularly good name, because it evokes the idea of an explosion, which is not really how it occurred. Astronomy consists of both the big bang and Subrahamanyan Chandrasekhar's theory of stellar evolution. The primary theory of geology is plate tectonics. For biology the key concept is Charles Darwin's theory of evolution. Isaac Newton's method of fluxions (theory of calculus) is probably the key concept in mathematics, much as Euclid's Elements form the basis of geometry.
What is The science of classification is called?
Type your answer here... Systematique ...in french. In fact Taxonomy is more oriented on descriptive and classification aspects as systématique focuses on inter-relations and how taxons are organized in evolution
The key elements for a fire?
Fuel, Oxygen and Heat Fuel, Oxygen and Heat Fuel, Oxygen and Heat
Why is the periodic table called the key of life?
It is called the key of life because all the elements or compounds of the elements of on the periodic table make up the world.
Is the following sentence true or false Mendeleev used his periodic table to predict the properties of undiscovered elements. Today and Periodic Table?
True. Mendeleev used his periodic table to predict the properties of undiscovered elements by leaving gaps for them based on the patterns he observed in the properties of known elements. His predictions were later confirmed with the discovery of elements like gallium and germanium, which closely matched his forecasts. This ability to predict properties based on periodic trends is a key aspect of the periodic table's significance in chemistry.
Why do the key features of the periodic table relate to the results of titration?
The key features of the periodic table, such as atomic number and chemical properties, can influence the behavior of elements in titration reactions. For instance, elements with higher atomic numbers may require more titrant to reach the endpoint due to their greater number of reactive sites. Additionally, elements with similar chemical properties may exhibit similar titration behaviors.
The most useful source of chemical information about the elements is a?
periodic table. The periodic table provides a concise and organized overview of all the known elements, including their atomic number, atomic mass, and other key properties. It allows scientists to quickly access information about each element, such as its electron configuration, valence electrons, and chemical reactivity.
How is metallic character shown on the periodic table?
The metallic elements on a periodic table may be represented by a certain color unlike those of other elements. Most periodic tables have elements in different colors, so try looking at the key that shows what each color represents for that element.
What is the answer key to the presidential periodic table?
this dick
Which pure substances does the periodic table provide information about?
The Periodic Table provides a surprising amount of Information about all of The Atomic Elements in their mono-Atomic form.It is "also" the Key to The Code that determines which Atom will, may, or can Covalently Bond with which Other Atom and specifically especially in which Configurations.
What does O stand for on the periodic table of elements?
O stands for Oxygen on the periodic table of elements. It is a chemical element with the atomic number 8 and is essential for life as it is a key component of water and many organic compounds.
What is an element key?
An element key is a unique identifier associated with each element in the periodic table. It typically consists of the element's one- or two-letter symbol, which is used to represent the element in chemical formulas and equations. The element key helps to distinguish each element and is essential for organizing and categorizing elements in the periodic table.
What are some key features about the organization of the periodic table?
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What are the advantage of law of triads?
The law of triads helped in identifying patterns and relationships among elements, leading to the development of the periodic table. It also played a key role in the early classification of elements based on their atomic masses and properties. However, the law of triads was later superseded by more accurate and comprehensive periodic table arrangements.
What are some science project ideas for the periodic table?
Create a visual representation of the periodic table using different materials or artwork to represent each element. Investigate the history of the periodic table and its development over time, highlighting key scientists and discoveries. Compare the properties of elements within a specific group or period to identify trends or patterns. Explore the practical applications of certain elements in everyday life, technology, or industry.
