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worty [1.4K]
3 years ago
12

Which of the following combinations of elements would form anions?

Chemistry
1 answer:
Alla [95]3 years ago
6 0

N and O

Explanation:

Nitrogen and Oxygen will both form anions.

An anion is an atom that has gained electron.

Atoms that are electronegative are anions as they tend to add electron to themselves in order to attain a stable configuration.

  • When an atom gains an electron, the proton to electron balance is tipped.
  • The number electrons is more.
  • Such an atom is said to be an anion.
  • Most non-metals are anions. All non-metals are anions.
  • From the give options, nitrogen and oxygen are non-metals and they will for anions.

learn more:

Anion brainly.com/question/4670413

#learnwithBrainly

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Which statement is true concerning the elements in families 1 and 2?
jeka57 [31]

Answer:

The correct option is;

D. All the elements in families 1 and 2 can place all their shell electrons in the s sub-level

Explanation:

The elements in families 1 and 2 also called the group 1A and group 2A elements are known as the alkali and alkaline earth metals. The elements in the families 1 and 2 are also referred to as the s-block elements as they have their valence electrons which are 1 and 2 respectively, in the s-orbital or s sub-level

Due to their low ionization energy, and the ease with which they donate their valence electrons, elements of the families 1 and 2 are known to be very reactive, and are found in a combined state in nature.

5 0
3 years ago
Electrons and the Periodic Table
White raven [17]

Answer:

The third one

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6 0
3 years ago
Acellus<br> How many grams of strontium<br> (Sr, 87.62 g/mol) are in 2.92<br> moles of strontium?
saul85 [17]

Answer:

There are 255, 85 grams of Strontium in 2,92 moles.

Explanation:

We perform a simple rule of three to calculate the number of grams, knowing that one mole of Sr weights 87, 62 grams:

1 mol Sr---------87, 62 grams

2,92 mol Sr-----x=(2,92 mol Sr x-87, 62 grams)/1 mol Sr= 255,8504 grams

5 0
3 years ago
Complete and balance the molecular equation, including phases, for the reaction of aqueous sodium sulfate, Na2SO4, and aqueous b
expeople1 [14]
The complete chemical reaction of aqueous Sodium sulfate and aqueous Barium nitrate is

Na_{2}  SO_{4} (aq) + Ba(NO_3)_2(aq) -\ \textgreater \  BaSO_4(s) + 2NaNO_3(aq)

The right side and the left side of the reaction have equal number of elements, therefore it is balanced.

5 0
3 years ago
Read 2 more answers
Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies
lutik1710 [3]

Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies appear at the bottom of the mass because of high power of solubility.

<h3>What is lattice energy? </h3>

The lattice energy is defined as the energy change upon the formation of one mole of crystalline ionic compound from its same constituent ions, that are assumed to be initially in the state of gases. It is also defined as measure of the cohesive forces which bind ionic solids together.

As the lattice energy of the ionic compound increase the solubility of that particular compound decrease. Hence compound which have low lattice energy are more soluble than compound having high lattice energy. When molten rocks cools and solidified, the compound having smallest lattice energy become more soluble than crystals of compound which have large lattice energy. Therefore, crystal of compound with the smallest lattice energy start appearing at the bottom of the mass.

Thus, we concluded that due to high solubility power of compound with low lattice energy appear at the bottom of the mass.

learn more about lattice energy:

brainly.com/question/13169815

#SPJ4

4 0
2 years ago
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