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2 years ago

Lithium has the electron arrangement 2,1. When lithium forms an ion,

Chemistry

1 answer:

iragen [17]2 years ago

4 0

Answer:

when lithium forms an ion it donates 1 electron

which makes its electron configuration to become 2

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If a car is traveling 100 km/h and comes to a stop in 3 minutes,what is acceleration of a passenger who is using vehicle restrai

Rama09 [41]

We are given –

Final velocity of car is, v= 0
Initial velocity of car is, u= 100 km/hr
Time taken, t is = 3 minutes or 180 sec

Here–

$\qquad$ $\pink{\bf \longrightarrow Initial\: velocity = 100 \:km/hr}$

$\qquad$ $\sf \longrightarrow Initial\: velocity = \dfrac{ 100 \times 1000}{3600} \:m/s$

$\qquad$ $\pink{ \bf \longrightarrow Initial\: velocity = 27.78\: m/s}$

Now –

$\qquad$ ____________________________

$\qquad$ $\purple{\bf \longrightarrow Acceleration = \dfrac{Final\: Velocity -Initial \:Velocity }{Time}}$

$\qquad$ $\purple{\bf \longrightarrow Acceleration = \dfrac{v -u}{t}}$

$\qquad$ $\sf \longrightarrow Acceleration = \dfrac{(0- 27.78)}{1800}$

$\qquad$ $\sf \longrightarrow Acceleration =\cancel{ \dfrac{- 27.78}{1800}}$

$\qquad$ $\purple{\bf \longrightarrow Acceleration = -0.15 \: m/s^2}$

$\qquad$ _______________________________

6 0

2 years ago

What do you think is responsible for the color produced in the flame, the metal atom or what is attached to the metal atom?

zlopas [31]

Answer:

metal Atom

Explanation:

every transition metal atom are responsible for the flame color. Some metal are also confirmed by flame test.

7 0

2 years ago

A longitudinal wave passing through a medium causes areas of:

torisob [31]

Answer:

The answer is B. Compressions and rarefactions.

Explanation:

<u><em>Longitudinal sound waves are waves of alternating pressure deviations from the equilibrium pressure, causing local regions of compression and rarefaction.</em></u>

4 0

2 years ago

A negatively charged ion that is formed by an atom gaining one or more electrons is called a(n):

Vilka [71]

Answer:

"Anion" is correct option

Explanation:

An anion is an ion that has gained one or more electrons, acquiring a negative charge.

8 0

3 years ago

Read 2 more answers

Marcus pours himself a Coke and takes it outside after just a few minute, he sees condensation on the outside of the glass. Expl

DerKrebs [107]

Answer:

Cold air holds less water vapor than warm air. This is why warm climates are often more humid than cold ones: Water vapor remains in the air instead of condensing into rain. Cold climates are more likely to have rain, because water vapor condenses more easily there.

Explanation:

plz give brainiest

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2 years ago