Answer:
The element will be Boron which has 5 electrons in it, and at the atomic nucleus it consists of 5 neutrons and 5 protons.
The lewis electron dot structure for boron will have three dots on the atom.
Which can be represented as · X :
Where X represents the element and dots represents the electrons present in the outermost valence shell.
Boron distributes its 5 electrons in this way, that first shell has 2 electrons and the second shell has 3 electrons.
Explanation:
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Answer:
intelligence and creativity
1) how does everyone’s belief system different based on their culture?
2)how has bio diversity affected ecosystem loss?
3)how can changing communities affect a person?
4)how has technology and the digital world affected generations in the last 10 years?
5)how do family’s live out and make up there own custom traditions?
6) how have humans affected our environment and everything around us?
7)how can sustainable living affect a person who has not had sustainable living there whole life?
8) how can trade aid different countries?
I don't know if I'm right but I think is:
1- D
2-A
3-C
4-A
Answer:
Taking into account the definition of avogadro's number, 1.8×10²⁰ atoms of silver are in 2.98×10⁻⁴ moles of silver.
First, you have to know that it is called Avogadro's Number or Avogadro's Constant. By Avogadro's number it is understood the number of elementary entities (that is, of atoms, electrons, ions, molecules) that exist in a mole of any substance. Its value is 6.023×10²³ particles per mole.
Avogadro's number represents a quantity without an associated physical dimension, so it is considered a pure number that allows describing a physical characteristic without an explicit dimension or unit of expression.
Avogadro's number applies to any substance.
Then you can apply the following rule of three: if 6.023×10²³ atoms are contained in 1 mole of silver, then 1.8×10²⁰ atoms are contained in how many moles of silver?
amount of moles of silver= (1.8×10²⁰ atoms × 1 mole)÷ 6.023×10²³ atoms
amount of moles of silver= 2.98×10⁻⁴ moles
Finally, 1.8×10²⁰ atoms of silver are in 2.98×10⁻⁴ moles of silver.
