Alkaline Earths

Alkaline earth metals do not exist , only alkali earth metals

Alkaline earth metals are found in Group 2

Nether. (It should make a cation, but it's too small.)

Look at any periodic table:

Beryllium #4

Magnesium #12

Calcium #20

Strontium #38

Barium #56

Radium #88

Sodium nitrate is not alkali. It is a neutral compound.

Also beryllium.

In your nucleus you should include the number of protons and neutrons. The number of protons can be found in the periodic table as the atomic number. To get the number of neutrons, subtract the protons from the atomic mass.

Next, you draw the orbitals, and their respective electrons. Remember the number of electrons in each orbital.

1st orbital-2 electrons

2nd orbital- 8 electrons

3rd orbital- 18 electrons

All alkali (not alkaline-earth) metals are extremely reactive with water, but within the group, lithium is the least reactive.

some are easily, all of them react with air which they tarnish quickly. lithium, potassium, rubidium , caesium and francium all ignite when they are placed in water. but overall there is nothing else i can really say from what i know. :-)

It is because alkali metals are larger in size than alkaline earth metals.Also, the effective nuclear charge is more in case of alkaline earth metals. This makes their ionization enthalpies larger than alkali metals.

Ca. 30 US $, for technical grade metal.

The alkaline earth metals come from the place that is described in their name: earth. They occur naturally in different types of earth.

no, alkaline earth metals are only in group 2 on the periodic table. nickel is a transitional metal

Alkaline earth metals are in the 2nd column of the periodic table. They can lose up to 2 electrons without having to pull electrons out of an inner shell, and so alkaline earth metals almost always have a charge of +2

1.5

Alkali metals (group 1 elements) have one valence electron. Hence have one ionization energy

Alkaline earth metals (group 2 elements) have two valence electron. Hence have two ionization energy

Alkaline earth metals are in the second group. Be is the first metal of them.

Group IIA: beryllium, magnesium, calcium, strontium, barium and radium.

The answer your teacher is expecting is "calcium", though your teacher should have worded the question better; there are no alkali metals with 2 valence electrons. Calcium is an alkaline earth.

In an electrically neutral atom, the number of electrons is the same as the number of protons. Since the number of protons is the atomic number of an atom, and Beryllium has an atomic number of 4, this means that Beryllium has 4 protons in its nucleus. As mentioned previously, if the atom is electrically neutral, then Beryllium will also has 4 electrons.

All alkaline earth metals loss two electrons.

All you have to do is look at which group Beryllium is in and look at the other elements that are in the same column. The gruop of an element can help you determine its chemical properties. That group would be Group 2 with Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium.

i think its Barium

Noble gases are chemically inert and do not combine with alkaline earth metals. However, xenon will combine with highly electronegative elements like fluorine and oxygen forming compounds like XeO2, XeO3, XeF4, XeF6, XeOF4 etc.