Well in order to have a clean kitchen or any place you would consider cooking, all of the above would have to be cleaned and sanitized in order to make it safe. so the correct answer is all of the above.
Hope this helps!
Sodium (Na) has a +1 charge and Iodine ( I ) has a -1 charge. To create a molecule of sodium iodide the charges will need to balance.
Because the charges on anion and cation are the same; the molecular formula will be NaI
Answer:
there are three types of law
newton first, second and third law
which law you asked.
Explanation:
Answer:
- <u>The elements that belong to the nitrogen family are nitrogen, phosphorus, arsenic, antimonium, bismuth, and moscovium.</u>
Explanation:
<em>Families</em> are group of elements that belong to the same column in the periodic table.
Some families have a well known name. For instance, alkali metals is the family of the elements that belong to the first column: Li, Na, K, Rb, Cs, and Fr (H is an exception, in spite it is in the first column it does not belong to the alkali metals family because it is a nonmetal). Other well known families are alkaline earth metals (column 2), halogens (column 3), and noble gases (column 18).
All the members of a family have the same number of valence electrons, i.e. electrons in the outermost shell.
- <u>Nitrogen</u>, N, is in the column 15; it has 5 valence electrons, because its outer most shell has configurarion ns²np³ (n is 2 because nitrogen is in the second period).
The other members fo this family with the electron configuration of the outermost shell are:
- <u>Phosphorus</u>, P, 3s² 3p³ (third period)
- <u>Arsenic,</u> As, 4s² 4p³ (fourth period)
- <u>Antimonium</u>, Sb, 5s² 5p³ (fith period)
- <u>Bismuth</u>, Bi, 6s² 6p³ (sixth period)
- <u>Moscovium</u>, Mc, 7s² 7p³ (seventh period)
Neils Bohr
Development of the Atomic Theory. In 1913, Neils Bohr, a student of Rutherford 's, developed a new model of the atom. He proposed that electrons are arranged in concentric circular orbits around the nucleus. This model is patterned on the solar system and is known as the planetary model.