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NeTakaya
2 years ago
12

What is the difference between a period and a group in the periodic table?

Chemistry
2 answers:
Mandarinka [93]2 years ago
6 0
A period is horizontal; the elements gain 1 proton for each space moving left to right.
A group is vertical; the elements in each group have the same number of electrons in the valence shell(outer orbital).
Alexeev081 [22]2 years ago
3 0

In the periodic table, the vertical columns are called the “groups” or sometimes referred as “families.” They are called this because they have similar chemical properties. The horizontal rows on the period table are called periods because they all have same exact number of electron shells.

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What does Na2S formula mean?; What is the two in Na2S called?; How do you write Na2S?; What state of matter is Na2S?
xxTIMURxx [149]

The chemical compound sodium sulfide has the formula Na2S. It is written as Na_{2}S. It has a crystalline state. Na is followed by a two or 2. this indicates that the molecule has two of the specified element's atoms.

There is just one of these because there is no number following the S.

In all, this molecule consists of one sulfur atom and two sodium atoms.

A compound's chemical formula, which uses symbols for combining atoms, reveals the composition of the complex. We require the valency of the combining parts in order to write the formula.

The sodium sulfide chemical formula must be written down. So sodium and sulfur make up the two elements in the chemical. Sodium has a valency of +1, while sulfur has a +2.

For more information on sodium sulfide kindly visit to

brainly.com/question/10762285

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8 0
1 year ago
Which of the following would be considered important in including in the summary of an experimental investigation?
just olya [345]

Answer is: variables that were manipulated during the experiment.

The two main variables in an experiment are the independent and dependent variable.

Dependent variable is the variable being tested and measured in a scientific experiment.

Dependent variables depend on the values of independent variables. The dependent variables represent the output or outcome whose variation is being studied.

Laboratory room number is the least important.

7 0
3 years ago
Read 2 more answers
0.0027432 using scientific notation
alexira [117]

Answer: 2.7423 × 10^-3

Explanation:

4 0
3 years ago
Best answer tests always include the correct answer as one of the possible answer choices.
Evgen [1.6K]

Answer:

true or false

Explanation:

could it be true that it can become false when you haven't try to be postive

3 0
2 years ago
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What is the volume of the sample at stp?
Yuki888 [10]
At stp the volume is 22.4 L .

hope this helps!
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