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Which element is a stable element?
A stable element is any non-radioactive element. All elements before element atomic number 84 (not including 84) - Polonium (Po) are stable elements.
What is s block element?
A block element is an HTML element that typically starts on a new line and takes up the full width available. These elements can have margins, padding, borders, and can contain other block or inline elements. Examples of block elements include , , -, and .
Why do scientists use symbols to represent atoms?
Symbols are universally understood across many languages. Also, using symbols rather than full names helps scientists to avoid the repetition of writing the long names of elements and atoms again and again.
The element argon is the last element in its period What does this tell you about?
This tells us that argon has a full outer electron shell, making it stable and unreactive. Elements at the end of a period often have filled electron shells, giving them properties different from other elements in the same period.
Why do scientist prefer to use chemical symbols of elements instead of their names when they refer to elements?
Because it is more simple to write one or two letters than a word and also these symbols are valid in all languages.
Why are elements given a symbol?
Different languages have their own words for elements, but chemical symbols are international, so they provide a universal way of specifying chemicals. A chemical formula is not specific to any language and will make the same sense in any country. Also, many molecules and formulae involve a large number of different elements, or complex arrangements of the same elements, and symbols provide a way to express them without being too long.
How does the elements reacts to each other?
An element reacts with another element by sharing electrons. The elements keep sharing electrons until both elements have a full outer shell.
Which element is a stable element?
A stable element is any non-radioactive element. All elements before element atomic number 84 (not including 84) - Polonium (Po) are stable elements.
Why it's important to use symbols to represents elements?
because it would suck to have to write out their full names everytime
Use element in a sentence?
The periodic table is full of elements.
What element is nonreactive and discovered as a pure element?
Helium is a nonreactive element that was discovered as a pure element. It is a noble gas with a full outer electron shell, making it stable and unreactive with other elements.
What is s block element?
A block element is an HTML element that typically starts on a new line and takes up the full width available. These elements can have margins, padding, borders, and can contain other block or inline elements. Examples of block elements include , , -, and .
What element would have a full valence shell on the periodic table?
The noble gases helium and neon are the only elements with completely full outer shells.
What group does group one from the periodic table likes to reacts with?
Group one elements are the most reactive with group 7 elements as it is the easiest way for the elements to complete their outer shell as the group one element gives its extra electron to the group 7 element and then the group 7 element has a full shell too.
Why do scientists use symbols to represent atoms?
Symbols are universally understood across many languages. Also, using symbols rather than full names helps scientists to avoid the repetition of writing the long names of elements and atoms again and again.
Which elements is less reactive an element whose atoms have seven valence electrons or an element whose atoms have eight valence electrons?
the element with seven valence electrons will be more reactive. The reason for this is that elements want to always want to have a full valence shell (they always want 8, like a noble gas). The element with eight valence electron is happy with its full shell and will not want to get rid of any electrons.
The element argon is the last element in its period What does this tell you about?
This tells us that argon has a full outer electron shell, making it stable and unreactive. Elements at the end of a period often have filled electron shells, giving them properties different from other elements in the same period.
