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Alkali metals are positioned to the far left in the periodic table. They react with hydrogen and oxygen(no they don't react with metals) and they have one electron in the outermost orbit.
Halogens are positioned next to the noble gases in the periodic table. They react with nonmetals (no they don't react with metals) and they have seven electrons in the outermost orbit.
Noble gases are positioned to the far to the right or last column in the periodic table. They never react with metals (no they don't react with metals) and they have 0 electron in the outermost orbit because they are very unreactive, which mean they are neutral (0/canceled).
***Bold Words Important Keys for the Words***
(Answers are found in page #110, 111, and 112 in the Grade 9 Nelson Science Textbook for Ontario, and also use the modern Periodic Table as your guide.)
What else can I help you with?
What is the outer shell electrons on the periodic table?
Outer shell electrons, also known as valence electrons, are the electrons located in the outermost energy level of an atom. They play a crucial role in determining an element's chemical properties and reactivity. The number of valence electrons can often be inferred from an element's position in the periodic table, particularly within the main groups, where elements in the same group typically have the same number of valence electrons. For example, alkali metals in Group 1 have one valence electron, while halogens in Group 17 have seven.
How many valence electrons are there for calcium?
2, as indicated by its position in periodic column 2.
What can you predict an element from it's position in the periodic table?
how many electrons it has---how many valence electrons and how many levels of electrons. its Atomic Mass its atomic number
Why is the position of hydrogen not justified in periodic table?
The position of hydrogen is not well-defined in the periodic table because it exhibits properties of both alkali metals and halogens. This makes it challenging to categorize hydrogen into a specific group based on its properties alone. Additionally, hydrogen's electronic configuration and chemical behavior do not fit neatly into any one group, further complicating its placement in the periodic table.
Does the number of electrons an atom has defines what kind of element it is?
Yes, the number of electrons in an atom determines its chemical properties and where it is located on the periodic table. Each element has a unique number of electrons, which determines its position in the periodic table and its interaction with other elements.
Why are halogens the most electronegative elements?
Halogens are the most electronegative elements because they have a strong tendency to attract electrons due to their high effective nuclear charge and relatively small atomic size. With seven valence electrons, they are just one electron short of achieving a stable octet configuration, making them highly reactive and eager to gain that extra electron. Their position in Group 17 of the periodic table further emphasizes their strong electronegativity, as they experience significant nuclear attraction on their valence electrons. This combination of factors contributes to their status as the most electronegative elements.
Why position of hydrogen in modern periodic table is not certain?
because some of its properties resembles that of alkali metals i-e elements in group 1 and with the halogens i-e elements of group 17
What does the position of magnesium (Mg) on the periodic table tell you about how it reacts with other elements?
Magnesium (Mg) is located in Group 2 of the periodic table, indicating that it is an alkaline earth metal. This position suggests that it has two valence electrons, which it readily loses to form cations with a +2 charge during chemical reactions. As a result, magnesium tends to react with nonmetals, such as oxygen and halogens, to form ionic compounds. Its reactivity is moderate, allowing it to combine with many elements, particularly at elevated temperatures.
What single characteristic of the atom of an elements determines the elements place in the periodic table?
The number of electrons determines an element's position.
What atomic property determines an elements position on the periodic table?
the number of protons in the nucleus and the number of electrons in the valence orbital
What relationship is there between the outermost suborbital in an atom and its position in the periodic table?
The position in the periodic table can range in size moving from left to right, and it has a wider range of numbers, but in the outermost suborbital, it can only range from 1-8 valence electrons!
What is the atomic number on the periodic table?
The atomic number on the periodic table is the number of protons for the element.
