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Stels [109]
3 years ago
15

Why are Li Na and k Placed in the same group of the periodic table?​

Chemistry
1 answer:
Rudiy273 years ago
5 0

Answer:

Their valence electrons/properties

Explanation:

Elements in the same group of the periodic table have the same amount of valence electrons, which determines how they bond with other elements in other groups. This also determines their properties such as their reactivity. Since Li, Na, and K are in the same group, they must have similar properties and the same amount of electrons in their outermost shell.

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A sample of calcium oxide has mass of 2.80 g. The molar mass of CaO is 58.08 g/mold how many moles of CaO does this sample conta
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Hi!

To convert grams to moles, you need to divide the amount (grams) of your substance by its molar mass, both of which are given to you.

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Constance has an apple that weighs 85,000 milligrams and a peach that weighs 0.15 kilograms. which fruit has the greater mass? c
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The fruit which has the greater mass is peach i.e. 150 grams.

<h3>What is mass?</h3>

Mass is a quantity which is used to define that what amount of substance will occupy any space or present in the given object.

We have given,

Weight of apples = 85,000 mg

Weight of peach = 0.15 kg

To compare the quantity first we have to convert both of these units in the same unit, and we know that:

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And in 1 grams = 1000 milligrams

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To know more about mass, visit the below link:

brainly.com/question/15526412

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