Electrons are added into the outermost what in groups 1 & 2

Answers

Answer 1

Answer:

S orbital.

Group 1 elements have a general configuration $ns^(1)$ , where n represents the highest occupied Principal Energy Level. For example, Lithium has the valence configuration $2s^(1)$ whereas Cesium has $6s^(1)$ . Both of them belong to Group 1 of Periodic Table.

Group 2 elements have a general configuration of $ns^(2)$ . For example, Magnesium has $3s^(2)$ as its outer shell configuration while Strontium has the same as $5s^(2)$ .

We see that in both the cases, the outermost S orbital is being filled.

Related Questions

Which type of energy transfer occurs when a beaker of water is heated on a hot plate?
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An upward fold in a rock is called a plateau.a. Trueb. False
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A material that transmits nearly all the light in a ray because it offers little resistance to the light is A. translucent.
B. opaque.
C. fluorescent.
D. transparent.

Answers

Answer

D. transparent.

Explanation.

Materials can be classified into three in relation to how light pass through them.

Translucent. These are materials that allow light to pass through them but you can not see through them. A good example of this material is the glass that is used to make doors of a bathroom.

Opaque. These are material that cannot at all allow light to go through them. Examples are; Thick metals, concrete, wood and many others.

Transparent. Theses are materials that allow light to go through them and also you can see through them. A good example is the windscreen of a car.

With this information the correct answer is D. transparent.

The answer is D, transparent

The largest mass extinction event in the history of the Earth occurred at the end of the _______ period.

Answers

The largest mass extinction event in the history of the Earth occurred at the end of the Paleozoic Era. This happened more than 250 million years ago. During this mass extinction, the entire dinosaur population was wiped out. There was approximately 96% of all the life forms on Earth destroyed during this time period.

Air pressure is gravity pulling down on air molecules.
a. True
b. False

Answers

Air pressure is gravity pulling down on air molecules. Like us,air has also mass and the pressure is brought down by the earth’s gravitycausing an increase in weight exerted on you as you descend lower into theatmosphere. So, as you enter into the other layers of atmosphere above the troposphere,the air pressure starts to decrease. Below the atmosphere is the hydrosphere. This iswhere all liquid forms are located. And since the seawater has a greater massthan air, it has the greatest pressure. The answer is true.

Answer:

true

Explanation:

HELP FAST!!!!!!!Four beakers have water at 27 °C. A piece of metal is dropped into the water in each beaker. The table below shows the initial temperature of the four metals.
A - 30 degrees C
B - 42 degrees C
C - 25 degrees C
D - 16 degrees C
which metals will transfer heat to the water?
A. Metals A and metals B
B. Metals B and metals C
C. Metals C and metals D
D. Metals B and metals D

Answers

Answer

A. Metals A and metals B

Explanation

Heat transfer takes place whenever there is temperature difference. When two bodies of different temperatures are brought together, heat energy will move from one body to the other until equilibrium temperature is reached.

In our case, heat transfer will take place in all four metals.

Metal A will transfer heat to the water since it's temperature is higher than that of water.

Metal B will also transfer heat to the water since it's temperature is higher than that of water.

Metal C will get heat from the water since it's colder than the water.

Metal D will also get heat from the water since it is colder than water.

Answer: a: metals a and metals b :)

Explanation:

My dog Callie can run at 21 mi/h. How far can he travel in 10 hours?

Answers

Answer: 210 miles

Explanation:

21 mi/1 hr

21 * 10 hrs

210 mi

Bonito has potential energy while he was in the starting blocks, getting ready to run his 5-kilometer race. Which of the following statements are true about his potential energy? Choose the three statements that apply.