Dmitri Mendeleev Was the name of the guy you where looking for
<span>Celsius scale: 100 degrees.
Fahrenheit scale: 180 degrees.</span>
Answer:
Temperature.
Explanation:
Temperature is a measure of the average kinetic energy of a system.
Answer:
Mg₃N₂ (magnesium nitride)
Explanation:
M(total) = M(mg) + M (n)
M (n) = M(total) - M(mg)
= 0.433g - 0.313g
= 0.12g
mole (N) = 0.12g / 14.0067 g/mol
= 0.008567
mole Mg = 0.313g / 24.3050 g/mol
= 0.012878
Mg = 0.012878 / 0.008567
= 1.5
N = 0.008567 / 0.008567
= 1
multiply by 2 to get whole numbers
Mg = 1.5 × 2 = 3
N = 1 × 2 = 2
Mg₃N₂ (magnesium nitride)
Answer:
D)groups 1 and 2
Explanation:
The s-block of elements are made up of those chemical elements we can find in groups 1 and 2 on the periodic table.
A periodic table of element is based on the periodic law which states that "the properties of elements are a periodic function of their atomic number".
In the table;
- elements having the same number of electrons in the outermost shell are placed over one another in vertical columns.
- each resulting vertical column is called a group or family.
- resulting horizontal rows are known as periods.
The s-block consists of elements in groups 1 and 2 having an outermost ""ns"" shell configuration. They are predominantly metals.
For Option A, groups 3-12 is the D-block
Option B, group 18 is filled with noble gases and it makes up the p-block
Option C, group 13-18 is makes up the p-block too.
So, the s-block is made up group 1 and 2 elements.
