Answer:
Holmium
Explanation:
Electronic configuration:
[Xe] 6s² 4f⁵ 5d⁶
To know this element, we must first find the atomic number and then look for its position on the periodic table.
Number of electrons in [Xe] = 54;
So the total number of electrons = 54 + 2 + 5 + 6 = 67
This element has an atomic number of 57. On the periodic table, it is Holmium
Answer:
693000
Explanation:
Multiplying anything by 10 must follow the base 10 system rules.
That means we can simply move the decimal 5 places to the right.
6.93 x 10⁵ = 693000
Answer:
im sorry im bored can we talk
Explanation:
lol
Reactants + Energy → Products. Note: ΔH represents the change in energy. In endothermic reactions, the temperature of the products is typically lower than the temperature of the reactants. ... The energy needed for the reaction to take place comes from the water, which gets colder as the reaction proceeds.
Answer:
we are given that
Student converts grams to milligrams by multiplying by the conversion factor 1g/1000 mg.
we have been asked to find Is the student performing this calculation correctly?
Suppose you have x grams of something and convert it into mg as follows:
As we know that
So we can write
mg
It mean that conversion factor is
It mean student doesn't performed the calculations correctly.
Explanation: