1, This element has a complete outermost energy level and is found in the 5th period. 2. This element has 2 electrons it its outermost energy level and belongs to the 2nd period.
3. This element has 3 electrons in its Lewis dot structure and is in the 3p orbital section.
4. This element has 74 protons.
5.This element in the 4th period wants to gain one electron to make an ionic bond.
6. This element is the halogen in the 5th period.
7. This metalloid has 3 electrons in its 5p orbitals.
8. This element in the 5th period wants to lose two electrons to make an ionic bond.
9. This malleable metal has an atomic number of 47.
10.This element in the 2nd period will form an ionic compound with a 1:1 atom ratio with Magnesium.
11.This element has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p4.
12. This element was named for the scientist who discovered the nucleus of the atom using gold foil.
13. This noble gas belongs to the 6th period.
14. This element has 1 electron in its 4d orbital section.
15. This 3rd period element will not form compounds because it fits the Octet Rule.
Answers
2) Berylium
3) Aluminium (Assuming 3p = 3rd Period)
4) Tungsten
5) Bromine
6) Xenon again
7) Indium I think
8) Strontium
9) Titanium
10) Oxygen
11) I don't understand that at all XD
12) Rutherfordium
13) Radon
14) Potassium?
15) Argon
So somebody needs to confirm 3, 7, 11, and 14, but I think the rest are correct if you load up a Periodic table
Related Questions
Free radicals are molecules which: A)Damage cell membranes, DNA, and LDL. B)Steal electrons from molecules of surrounding tissues. C)All answers are correct. D)Are highly unstable. E)Are missing an electron.
Match each of the following fat-soluble vitamins with the unit used to express the amount required in the diet. A: microgram. B: miligram
How are genes sex chromosomes inherited
A 3.50 g sample of an unknown compound containing only C , H , and O combusts in an oxygen‑rich environment. When the products have cooled to 20.0 °C at 1 bar, there are 4.41 L of CO2 and 3.26 mL of H2O . The density of water at 20.0 °C is 0.998 g/mL.
Subtract the ratio of the actual mass of the compound to the empirical formula mass from the subscripts of the empirical formula.
Divide the ratio of the actual mass of the compound to the empirical formula mass by the subscripts of the empirical formula.
Add the ratio of the actual mass of the compound to the empirical formula mass to the subscripts of the empirical formula.
Answers
Answer : Option A) Multiply the ratio of the actual mass of the compound to the empirical formula mass by the subscripts of the empirical formula.
Explanation : To find molecular formula for a compound one needs to follow the below steps using the emphirical formula of that compound.
Step 1) Calculate the empirical formula mass of that compound
Step 2) Take the ratio of gram molecular mass by the empirical formula mass that was obtained in step 1.
Step 3) Multiply each of the subscripts within the empirical formula by the number that is calculated in step 2.
By following these easy steps one can find the molecular formula.
The step that would help a student finds the molecular formula of a compound from the empirical formula is by ‘Multiply the ratio of the actual mass of the compound to the empirical formula mass by the subscripts of the empirical formula.’
Rb
Sr
Zr
Cl
Answers
Alkali metals are known as the group 1 elements.
When we know this, we just have to look to group 1 of the periodic table.
Rb (Rubidium) is in group 1; it is classified as an alkali metal.
~
Answer:
A
Explanation:
on edge
Answers
The answer is,
A. 7.88 × 1022 formula units
Answers
The answer to your question is D. none of the above. Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms) gains or loses electrons. (A cation is a positively charged ion; an anion is a negatively charged ion.) Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules. I hope this helps.
Answer:
The answer is C. a metal and a nonmetal.
Explanation:
A covalent compound is formed when an element shares its valence electron with another element. This bond is formed between two non metals. Example:
An ionic compound is formed when one element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element and the element which accepts the electrons is known as electronegative element. This bond is formed between a metal and an non-metal. Example:
Thus an ionic compound is typically made of a metal and a nonmetal.
Answers
When hydrogen atoms combined to form helium, this process is known as nuclear fusion.
What is nuclear fusion?
Nuclear fusion can be described as when two or more nuclei fuse to produce a single heavier nucleus. In this reaction, the matter is not conserved due to some of the mass of the nuclei is converted to energy.
For nuclear fusion, the nuclei should be brought together reaction to occur. Each star in the universe, including the sun, is shine due to nuclear fusion. They form huge amounts of energy through this process.
In the core of the Sun, hydrogen nuclei are being transformed into helium. This is known as nuclear fusion. It occurs when four hydrogen atoms fuse into each helium atom. During this process, some of the mass of hydrogen nuclei is converted into energy.
Nuclear fusion where hydrogenatoms combined to form helium can be represented as:
Learn more about nuclear fusion, here:
#SPJ6
Answers
there is no answer
because everyone is perfect in their own way
;)