The atoms are not really sharing electrons as much as they are fighting over them this creates a force that makes the atoms stick together.
1 and 2 is 10,400 and 12.5
Answer:
The mass percent of gold in the rock is 2.500 %
Explanation:
Step 1: Data given
Mass of the rock = 12000 grams
Mass of gold = 300.0 grams
Step 2: Calculate mass %
Mass % = mass of gold / mass of gold
Mass % = (300.0 grams / 12000 grams) * 100 %
Mass % = 2.500 %
The mass percent of gold in the rock is 2.500 %
<h3><u>Answer</u>;</h3>
<h3><u>Explanation</u>;</h3>
- Elements in the periodic table are classified into various categories including alkali metals, alkaline-earth metals, halogens, and noble gases among others.
- <u>Alkali metals are Group 1 elements in the periodic table.</u> They comprise of elements lithium (Li) through francium (Fr). They have similar characteristics and behavior.
- <u>Halogens is another category of elements which is a subset of the nonmetals.</u> They comprise group 17 of the periodic table, from fluorine (F) through Astatine (At). These elements are chemically reactive and reacts with other elements such as group 1 and group 2 element.
It had to be a physical change unless there a chemical touching the metal surface making it a chemical change .
