list all the elements in group I(A), ii(A) and period 3 in order of their increasing atomic number
Group I(A) elements (Alkali Metals) in order of increasing atomic number:
1. Hydrogen (H)
2. Lithium (Li)
3. Sodium (Na)
4. Potassium (K)
5. Rubidium (Rb)
6. Cesium (Cs)
7. Francium (Fr)
Group II(A) elements (Alkaline Earth Metals) in order of increasing atomic number:
1. Beryllium (Be)
2. Magnesium (Mg)
3. Calcium (Ca)
4. Strontium (Sr)
5. Barium (Ba)
6. Radium (Ra)
Period 3 elements in order of increasing atomic number:
1. Sodium (Na)
2. Magnesium (Mg)
3. Aluminum (Al)
4. Silicon (Si)
5. Phosphorus (P)
6. Sulfur (S)
7. Chlorine (Cl)
8. Argon (Ar)
state the electronic configuration of the following elements: Barium, Silicon, sulfur, lithium and potassium.
The electronic configurations of the given elements are as follows:
Barium (Ba): 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
Silicon (Si): 1s2 2s2 2p6 3s2 3p2
Sulfur (S): 1s2 2s2 2p6 3s2 3p4
Lithium (Li): 1s2 2s1
Potassium (K): 1s2 2s2 2p6 3s2 3p6 4s1
Sure! Here are the elements in Group I (A), Group II (A), and Period 3 listed in order of increasing atomic number:
Group I (A) elements in order of increasing atomic number:
1. Hydrogen (H)
2. Lithium (Li)
3. Sodium (Na)
4. Potassium (K)
5. Rubidium (Rb)
6. Cesium (Cs)
7. Francium (Fr)
Group II (A) elements in order of increasing atomic number:
1. Beryllium (Be)
2. Magnesium (Mg)
3. Calcium (Ca)
4. Strontium (Sr)
5. Barium (Ba)
6. Radium (Ra)
Period 3 elements in order of increasing atomic number:
1. Sodium (Na)
2. Magnesium (Mg)
3. Aluminum (Al)
4. Silicon (Si)
5. Phosphorus (P)
6. Sulfur (S)
7. Chlorine (Cl)
8. Argon (Ar)
To list all the elements in Group I(A), Group II(A), and Period 3 in order of their increasing atomic number, follow these steps:
1. Identify Group I(A): This group is also known as the Alkali Metals group and includes elements from the first column of the periodic table.
2. List the elements in Group I(A) in increasing atomic number:
- Hydrogen (H) - atomic number 1
- Lithium (Li) - atomic number 3
- Sodium (Na) - atomic number 11
- Potassium (K) - atomic number 19
- Rubidium (Rb) - atomic number 37
- Cesium (Cs) - atomic number 55
- Francium (Fr) - atomic number 87
3. Identify Group II(A): This group is also known as the Alkaline Earth Metals group and includes elements from the second column of the periodic table.
4. List the elements in Group II(A) in increasing atomic number:
- Beryllium (Be) - atomic number 4
- Magnesium (Mg) - atomic number 12
- Calcium (Ca) - atomic number 20
- Strontium (Sr) - atomic number 38
- Barium (Ba) - atomic number 56
- Radium (Ra) - atomic number 88
5. Identify Period 3: This period is the third row of the periodic table.
6. List the elements in Period 3 in increasing atomic number:
- Sodium (Na) - atomic number 11
- Magnesium (Mg) - atomic number 12
- Aluminum (Al) - atomic number 13
- Silicon (Si) - atomic number 14
- Phosphorus (P) - atomic number 15
- Sulfur (S) - atomic number 16
- Chlorine (Cl) - atomic number 17
- Argon (Ar) - atomic number 18
- Potassium (K) - atomic number 19
- Calcium (Ca) - atomic number 20
- Scandium (Sc) - atomic number 21
- Titanium (Ti) - atomic number 22
- Vanadium (V) - atomic number 23
- Chromium (Cr) - atomic number 24
- Manganese (Mn) - atomic number 25
- Iron (Fe) - atomic number 26
- Cobalt (Co) - atomic number 27
- Nickel (Ni) - atomic number 28
- Copper (Cu) - atomic number 29
- Zinc (Zn) - atomic number 30
So, in order of increasing atomic number:
Group I(A): H, Li, Na, K, Rb, Cs, Fr
Group II(A): Be, Mg, Ca, Sr, Ba, Ra
Period 3: Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn