Ask question

Ask question

All categories

3 years ago

15

What are groups 1,2 and 3 examples of on the periodic table

1 answer:

pishuonlain [190]3 years ago

4 0

<span>The number of the group identifies the column of the standard periodic table in which the element appears.</span>
Group 1 contains the alkali metals ( lithium<span> (</span>Li<span>), </span>sodium<span> (</span>Na<span>), </span>potassium<span> (</span>K<span>), </span>rubidium<span> (</span>Rb<span>), </span>caesium<span> (</span>Cs<span>), and </span>francium(Fr).)<span>
Group 2 contains the alkaline earth metals (</span> beryllium<span> (</span>Be),magnesium<span> (</span>Mg<span>), </span>calcium<span> (</span>Ca<span>), </span>strontium<span> (</span>Sr<span>), </span>barium<span> (</span>Ba<span>) and </span>radium<span> (</span>Ra<span>) )
Group 3: </span><span> Scandium (Sc) and yttrium (Y) </span>

You might be interested in

What happens when bromine reacts with carbon?

serious [3.7K]

D. Electrons are shared between the bromine atoms and carbon atoms

4 0

3 years ago

Read 2 more answers

Which of the following explanations is correct about the wave that travels through the medium?

SVETLANKA909090 [29]

The correct answer is letter A

5 0

2 years ago

Which tuning forks will give rise to a beat frequency of 20 Hz when sounded together with a 240 Hz tuning fork?

Lubov Fominskaja [6]

Use the concept of beat frequency to find the applicable final freqeuncy for 20Hz beat frequency.

Beat can be defined as 'the interference pattern between two sounds of slightly different frequencies0

The expression for beat frequency is given as

$f_{beat} = |f_1-f_2|$

Where,

$f_2 =$ Final frequency

$f_1 =$ Initial frequency

The beat frequency for us is 25Hz and the initial frequency is 240Hz, then

$20= |f_2-240|$

Being an absolute value, two values are possible, both in addition and subtraction:

$f_2 = 240 \pm 20$

The two possible values are

$f_2 = 220Hz$

$f_2 = 260Hz$

3 0

2 years ago

Which of these materials is permeable?

kogti [31]

Correct answer is letter B. sandstone

8 0

2 years ago

What will be the ratio between the initial and final kinetic energy of a car, if its velocity is tripled?

Katarina [22]

Answer:b

Explanation:

7 0

2 years ago