Ask question

Ask question

All categories

3 years ago

12

O. How many protons, neutrons and electrons are in Neodymium - 144 (Nd-144)?

1 answer:

TiliK225 [7]3 years ago

8 0

Diagram of the nuclear composition, electron configuration, chemical data, and valence orbitals of an atom of neodymium-144 (atomic number: 60), an isotope of this element. The nucleus consists of 60 protons (red) and 84 neutrons (orange). 60 electrons (white) successively occupy available electron shells (rings).

You might be interested in

The average small intestine is about 3050 mm long> how many yards is this?

Lelechka [254]

Answer:

It would be D. or 9x+y=3050.

Explanation:

Brainliest bae

3 0

3 years ago

The system international (SI) unit for energy is:

Natalija [7]

Question

The system international (SI) unit for energy is:

Answer: joule

PLZ BRAINLIEST+THANKS :)

3 0

3 years ago

How many moles are equal to 89.23g of calcium oxide, CaO?

Katen [24]

1.59moles

Explanation:

Mass of CaO = 89.23g

Unknown

Number of moles = ?

Solution:

The mole is a unit of measurement in chemistry used to delineate the number of particles an atom contains.

A mole of a substance contains the avogadro's number of particles.

Number of moles = $\frac{mass}{molar mass}$

Molar mass of CaO = 40 + 16 = 56g/mol

Number of moles = $\frac{89.23}{56}$ = 1.59moles

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

8 0

2 years ago

3. 2KOH + H2SO4 = K2SO4 + 2H2O what chemical reaction is it.

Serjik [45]

From what is given, double replacement is what it is

5 0

2 years ago

Thea is doing a chemistry experiment. The instructions say she needs to use pure water. Hamza offer her a bottle labelled “100%

Diano4ka-milaya [45]

How is this going to help us in life wat the fawk

5 0

2 years ago