All categories

2 years ago

1. Which out of the following elements has the lowest electronegativity: Lithium, Beryllium, Magnesium, Sodium

Chemistry

1 answer:

lidiya [134]2 years ago

6 0

The element Sodium (Na) has a low electronegativity of the following elements.
The element Beryllium (Be) has the least metallic character.
The element Sodium (Na) has the largest atom.

<u>Explanation:</u>

Sodium (Na) which is a delicate, shimmering white, profoundly responsive soluble base metal loses an electron to a chlorine iota since it has seven electrons in its valence shell.
It needs one more electron to turn into a steady molecule. It has the most reduced electronegativity of the given components.
Beryllium (Be) is a light, silver-gray, relatively soft metal that is strong but brittle has the least metallic character of the given elements.
Since from left to right in a period, Metallic character decreases while nonmetallic character increases from top to bottom.
Sodium(Na) is the largest atom among the given elements since Atomic size decreases across a period from left to right and increases from top to bottom.

You might be interested in

Express in scientific notation. Make sure your answer has the same number of significant figures as the starting value. (1.8 x 1

slamgirl [31]

Answer : The answer is, $0.2\times 10^{-4}$

Explanation :

Scientific notation : It is defined as the way or representation of expressing the number that are too big or too small that is written in the decimal form. That means always written in the power of 10 form.

For example : 8000 is written as, $8.0\times 10^3$ in this notation, the significant figure is, 1 but $0.8\times 10^4$ in this notation, the significant figures are, 2

The given problem are :

$\frac{1.8\times 10^{-2}}{9\times 10^2}=0.2\times 10^{-4}$

According to the divide and multiplication rules of scientific figures, the final answer is only as precise as the value with the least number of significant figures.

Hence, the answer is, $0.2\times 10^{-4}$

6 0

2 years ago

Read 2 more answers

Eddie is performing an experiment. He asked the question what type of soil makes plants grow the fastest. He has four plants. He

Bezzdna [24]

Manipulated variable: the types of soil
Responding variable: how much t the plants grow

4 0

2 years ago

HI(aq)+NaOH(aq)→ <br> what the final balanced chemical equation with the phases included

julia-pushkina [17]

Answer:

$HI(aq)+NaOH(aq)\rightarrow NaI(aq)+H_2O(l)$

Explanation:

Hello there!

In this case, for this neutralization reaction, it is possible to realize that one the neutralization products is water (pH=7) and the other one is the salt coming up from the cation of the NaOH and the anion of the HI:

$HI(aq)+NaOH(aq)\rightarrow NaI+H_2O$

Moreover, since the solubility of NaI is large in water, we infer it remains aqueous whereas the water is maintained as liquid:

$HI(aq)+NaOH(aq)\rightarrow NaI(aq)+H_2O(l)$

Which is also balanced as the number of atoms of all the elements is the same at both sides.

Best regards!

7 0

2 years ago

What would you need to lower to change a gas to a liquid

IrinaVladis [17]

The temperature or the average kinetic energy of the molecules

5 0

2 years ago

Are ALL cations positive or negative ions

Mamont248 [21]

Answer: Ions result from atoms or molecules that have gained or lost one or more valence electrons, giving them a positive or negative charge. Those with a negative charge are called anions and those with a positive charge are called cations. Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. ... And all of them form an anion with a single negative charge. The VIA elements gain two electrons to form anions with a 2- charge.

hope this helps

7 0

2 years ago

Read 2 more answers