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3 years ago

The nucleus of one lithium atom has three protons and four neutrons. what is the total charge of the lithium nucleus.

Chemistry

2 answers:

Xelga [282]3 years ago

6 0

Since protons are postive and neutrons are neutral. Then it is postive.

bagirrra123 [75]3 years ago

3 0

I think it would be one as the total charge since the protons and neutrons cancel out each other, leaving one neutron. The other option is that it totals out causeing their to be a larger charge which would be 7.

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The element Co exists in two oxidation states, Co(II) and Co(III), and the ions form many complexes. The rate at which one of th

OLEGan [10]

Tomato potato A is the answer fo sho

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3 years ago

2. What is the average height in cm for plants in group 2? * 38 cm 56 cm 97 cm 114 cm

Nina [5.8K]

Answer:

76.25cm

Explanation:

38cm + 56cm +97cm +114cm = 305cm

305cm÷4 = 76.25cm

6 0

3 years ago

Why are index fossils used to date other fossils in an area of rock

WINSTONCH [101]

Index fossils can be used to help determine the relative age of rock layers. Index fossils are from species that only existed for a short time. Index fossils are found inrock layers. Trilobites and Graptolites are index fossils.

8 0

3 years ago

Identify the type of interactions involved in each of the following processes taking place during the dissolution of sodium chlo

icang [17]

Answer:

A. Interactions between the ions of sodium chloride (solute-solute interactions).

B. Interactions involving dipole-dipole attractions (solvent-solvent interactions).

C. Interactions formed during hydration (solute-solvent interactions).

D. Interactions involving ion-ion attractions (solute-solute interactions).

E. Interactions associated with an exothermic process during the dissolution of sodium chloride (solute-solvent interactions).

F. Interactions between the water molecules (solvent-solvent interactions).

G. Interactions formed between the sodium ions and the oxygen atoms of water molecules (solute-solvent interactions).

Explanation:

The solution process takes place in three distinct steps:

Step 1 is the separation of solvent molecules.

Step 2 entails the separation of solute molecules.

These steps require energy input to break attractive intermolecular forces; therefore, they are endothermic.

Step 3 refers to the mixing of solvent and solute molecules. This process can be exothermic or endothermic.

If the solute-solvent attraction is stronger than the solvent-solvent attraction and solute-solute attraction, the solution process is favorable, or exothermic (ΔHsoln < 0). If the solute-solvent interaction is weaker than the solvent-solvent and solute-solute interactions, then the solution process is endothermic (ΔHsoln > 0).

In the dissolution of sodium chloride, this process is exothermic.

3 0

3 years ago

Determine the number of valence electrons in pcl₃ and then draw the corresponding lewis structure.

Nikolay [14]

The number of valence electrons in $PCl_{5}$ will be 26.

The atom's outermost inhabited shell is where valence electrons are found. They are significant because they have a major impact on how an atom's chemical characteristics are determined.

The number of valence electron in P in 5 and number of valence electron in Cl is 7. There are one molecule of P and three molecule of Cl in $PCl_{5}$ molecule. By adding all valence electrons , the total number of valance electrons will be 26.

The Lewis structure of $PCl_{5}$ is shown as:

Therefore, the number of valence electrons in $PCl_{5}$ will be 26.

To know more about valence electrons

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7 0

2 years ago