How does the periodic table help us to predict unknown elements?

2 answers:

7 0

If you compare the unknown element to the various groups and periods on the table, it is easy to find which group the unknown most closely resembles in chemical and physical properties.

Please brainliest me if this helped; trying to level up!

Ksju [112]3 years ago

3 0

The periodic table is a systematic arrangement of the elements. They are arranged according to their atomic number, the number of protons (which in the case of atoms is also the number of electrons) of each atom.

You might be interested in

Identify the neutralization reaction.

dusya [7]

The neutralization reaction among all the reactions would be the one between an acid and a base to produce salt and water.

<h3>What is a neutralization reaction?</h3>

It is a reaction involving an acid and a base to produce salt and water.

From the list of reactions, the only reaction that involves acid and a base with salt and water being the products is the first reaction.

Thus, the neutralization reaction is represented by the equation:

$2H_3PO_4 + 3Ba(OH)_2 --- > 6H_2O + Ba(PO_4)_2$

More on neutralization reactions can be found here: brainly.com/question/20038776

#SPJ1

4 0

2 years ago

What does the bottom number within each box of the periodic table refer to? How can it be used to determine the number of neutro

geniusboy [140]

The number above the symbol is the atomic mass (or atomic weight). This is the total number of protons and neutrons in an atom. The number below the symbol is the atomic number and this reflects the number of protons in the nucleus of each element's atom. Every element has a unique atomic number.

4 0

3 years ago

What is the sum of 9260 and 3240

Salsk061 [2.6K]

9260 + 3240= 12,500

If have any questions feel free to ask me!

7 0

3 years ago

Read 2 more answers

Describes how substances react or changes to form new substances

pickupchik [31]

It will react by being a chemical change because something new is formed

7 0