Answer:
1.) Yes, Cs₂S
2.) Yes, MgF₂
3.) Yes, MgS
4.) No
Explanation:
Nonmetals are located on the right side of the periodic table in the p-block. It is safe to assume that all the other elements are metals.
Ionic bonds form between a metal and nonmetal. When determining the empirical formula, the cation (the element losing electrons) is written before the anion (the element gaining electrons). The charges can be balanced by modifying the quantity of element.
1.) Cs₂S
-----> Cesium = metal and Sulfur = nonmetal
-----> Cesium = Cs⁺
-----> Sulfur = S²⁻
2.) MgF₂
-----> Magnesium = metal and Fluorine = nonmetal
-----> Magnesium = Mg²⁺
-----> Fluorine = F⁻
3.) MgS
-----> Magnesium = metal and Sulfur = nonmetal
-----> Magnesium = Mg²⁺
-----> Sulfur = S²⁻
4.) Both cesium and strontium are metals
Answer is: <span>A. supplies the body with oxygen and nutrients, and picks up carbon dioxide wastes.
</span>The blood<span> transports:
</span>1) oxygen<span> from the </span>lungs<span> to the </span>cells<span> of the body.
</span><span>2) </span>carbon(IV) oxide <span>from metabolism to the lungs, where it is exhaled.
3) </span>nutrients<span>, transports </span>hormones<span> and removes waste products.</span>
The 2 types of mechanical weathering are .....
1) * Temperature Change
-Temperature change makes rocks contract and expand
-Also one of the important cause of mechanical weathering.
2) * Abrasion
-Abrasion is a process in which an external force
Example: water movement or gravity which causes rock materials grind (reduce <<< synonyms) which can break apart the outer layers of affected rocks.*PLEASE GIVE THIS A THANKS :) :D xD AND ALSO THE BRAINIST ANSWER PREETTY PLEASEEEEEEEE, DON'T YOU EVER FEEL LIKE YOUR GOOOOING TO GIVE ME THE BRAINIEST ANSWER/CROWN??? xD
Answer:
The periodic law states “When elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties