Question

Choose an element and extract information about that element from the periodic table (for example: the...

Choose an element and extract information about that element from the periodic table (for example: the symbol, atomic number, atomic mass, and the number of protons and electrons). Explain how you did it.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The element is Hydrogen. Hydrogen is selcted as it first element in periodic table.

The atomic symbol is H and the molecular symbol is . One molecule of hydrogen contains 2 atoms of hydrogen

The atomic number is 1 and the mass number is 1. The atomic mass is 1.008 amu or 1.008 g/mol. These data are given in the periodic table. In the symbol the subscript 1 represents atomic number and superscript 1.008 represents atomic mass.

The number of electrons is equal to the atomic number. It is equal to 1.

The number of protons is equal to the atomic number. It is equal to 1.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Part A Name an element in the fourth period (row) of the periodic table with five...
Part A Name an element in the fourth period (row) of the periodic table with five valence electrons. Express your answer as a chemical symbol. Part B Name an element in the fourth period (row) of the periodic table with two 4p electrons. Express your answer as a chemical symbol. Part C Name an element in the fourth period (row) of the periodic table with one 3d electron. Express your answer as a chemical symbol. Part D Name an element...
Use the periodic table to give the symbol of the element that meets the following conditions....
Use the periodic table to give the symbol of the element that meets the following conditions. The element has six electrons in energy level n=3. The element has one electron in the 6p sublevel The element's electrons complete the 7s sublevel. The element has four 4p electrons.
Look at the periodic table of chemical elements in Appendix B. The most stable nucleus of...
Look at the periodic table of chemical elements in Appendix B. The most stable nucleus of gold (symbol: Au) has an atomic number of 79 and an atomic mass of 197 (197-79 Au). a. What isotope of what element can make this gold nucleus with an alpha decay? b. What isotope of what element can make this gold nucleus with an electron-emitting beta decay? c. What isotope of what element can make this gold nucleus with a positron-emitting beta decay?
1- How many moles of N2O5 contain the same number of nitrogen atoms as exactly 19...
1- How many moles of N2O5 contain the same number of nitrogen atoms as exactly 19 mol of NO2? 2- How many grams are contained in 0.900 mol of calcium phosphate, Ca3 (PO4)2? 3- Ga Number of electrons =_______ electrons Number of protons = _________protons 4- element number 79 Number of electrons = _____electrons Number of protons = ______protons 5- What are the symbol and name for an element whose average atoms have a mass that is 59.6% of the...
use the information extracted from the periodic table in the figure below to answer the following...
use the information extracted from the periodic table in the figure below to answer the following question. how many electrons does nitrogen have in its valence shell?
Based on their locations on the periodic table, order the following elements from smallest atomic radius...
Based on their locations on the periodic table, order the following elements from smallest atomic radius to largest atomic radius. (Use the appropriate <, =, or > symbol to separate substances in the list.) Ca, Rb, Sr, Kr
Consider the Following atoms A) Magnesium B) Niobium C) Dubnium D) Tantalum 1) Consult the periodic...
Consider the Following atoms A) Magnesium B) Niobium C) Dubnium D) Tantalum 1) Consult the periodic table and rank these atoms, from most to least, by their mass. 2) Consult the periodic table and rank these atoms, from most to least, by their number of electrons. 3) Consult the periodic table and rank these atoms, from most to least, by their number of protons.
Choose one of the transition or inner transition metals from the periodic table. I choose Titanium...
Choose one of the transition or inner transition metals from the periodic table. I choose Titanium Using your book (Chapter 23 may be very useful) and Internet resources, discuss why your transition metal and their compounds display a variety of color. Be sure to include in your discussion, important oxidation states, the electron configuration and how the d-electrons are involved. How can you include the electromagnetic spectrum and the nature of light into your discussion? How is energy and wavelength...
What is half-life of a radioactive element? The time taken for the parent element to disappear....
What is half-life of a radioactive element? The time taken for the parent element to disappear. The time taken for half of the original number of nuclei to decay The time taken for the volume of a sample to reduce to half its original value The time taken for the mass of a sample to reduce to half its original value. The number of electrons in a normal atom is the same as: (i)    the number of protons in its...
The periodic table is a known staple in modern chemistry. At some point in your life...
The periodic table is a known staple in modern chemistry. At some point in your life you’ve heard about different trends on it from atomic mass to radii. In this discussion board we’re going to talk about exceptions to those trends.Electronegativity is supposed to go from left to right on the periodic table, but certain transition metals have higher electronegativity than the elements to the right of them. Propose a reason (200- 250 words )why and explain your answer.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT