Question

1.The first scientist who arranged the elements into group of threes with the same properties was...

1.The first scientist who arranged the elements into group of threes with the same properties was

a. Dobreiner

b. Newlands

c. Dalton

d. Mendellev

2. Elements were also grouped by eight. This was devised by

a. Dobreiner

b. Newlands

c. Dalton

d. Mendellev

3.The modern periodic table was devised

a. Dobreiner

b. Newlands

c. Dalton

d. Mendellev

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #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
The ions of most main-group elements have the same number of _______ as the noble gas...
The ions of most main-group elements have the same number of _______ as the noble gas that is closest to them in the periodic table. a. neutrons b. protons c. electrons d. protons and electrons
Two elements are more likely to be ionically bonded when .... Select one: a. the elements...
Two elements are more likely to be ionically bonded when .... Select one: a. the elements in the material have similar electronegativities b. the elements in the material are well apart (in different sides) in the periodic table c. the elements in the material belong to the same group d. the elements in the material has the same valence
1. What common feature exists in the electronic structure of elements in group 2 (the alkaline...
1. What common feature exists in the electronic structure of elements in group 2 (the alkaline earth metals)? How about group 6 (the chalcogens)? 2. Notice how Mendeleev correctly predicted the formulas for the oxides and chlorides of the elements shown in Figure 8.1 on page 339 in the Tro textbook. Using these examples as a guide, suggest the formula for the oxide of a group 2 element? For group 6, what would be the common formula for the chloride?...
Specify the group on the periodic table in which each of the following elements is found:...
Specify the group on the periodic table in which each of the following elements is found: a) [Ar]4s1 b) [Ar]4s23d104p3 c)[Ne]3s23p3 d) [Ar]4s23d6 Answer Question 4.44 from the back of the chapter: On the basis of their positions in the periodic table, select the atom with the larger atomic radius in eachof the following pairs: a) Mg, P; b) Sr, Be; c) As, Br; d) Cl, I; e) Xe, Kr
1. Identify the least electronegative atom. a. P b. Na c. I d. B e. O...
1. Identify the least electronegative atom. a. P b. Na c. I d. B e. O 2. Give the number of nonbonding pairs of electrons in H2NOH. a. 0 b. 1 c. 2 d. 3 e. 4 3. Ionic bonds form between a. only elements in the same row of the periodic table b. only elements in the same column of the periodic table c. elements with significant differences in electronegativity d. elements with similar electronegativity e. two identical atoms
1.The first scientist who was able to separate two isotopes of neon was_ ? Was he...
1.The first scientist who was able to separate two isotopes of neon was_ ? Was he Francis Aston? I am not so sure. 2.The first reaction of transmutation was presented in experiments of _ ? 3.In an atom strong force acts between_? 4. What characteristic of an atom is changing in nuclear reactions?
Below is a list of properties that a group of people might possess. For each property,...
Below is a list of properties that a group of people might possess. For each property, either give the minimum number of people that must be in a group to ensure that the property holds, or else indicate that the property need not hold even for arbitrarily large groups of people. (Assume that every year has exactly 365 days; ignore leap years.) (a) At least 2 people were born on the same day of the year (ignore year of birth)....
Mary Shelley published her novel Frankenstein in 1818. Frankenstein tells the story of a scientist who...
Mary Shelley published her novel Frankenstein in 1818. Frankenstein tells the story of a scientist who creates an intelligent but terrifying creature in a laboratory experiment and then is tortured by what he has done. The story is infused with elements of Gothic horror and is representative of the Romantic movement. Some suggest that Frankenstein should be considered the first true science fiction story. However, while the usage of science and technology is a primary theme of the science fiction...
1) Solve the following problems dealing with the periodic table and its elements. a) Which letter...
1) Solve the following problems dealing with the periodic table and its elements. a) Which letter of the alphabet is the most common first letter in the symbol of the elements? How many elements have this letter as the first letter in the symbol? b) Which letter of the alphabet is the most common as the second letter in the symbol of the elements? How many elements have this letter as the second letter in their symbol? c) Which letters...
For the first eighteen elements, the electrons fill the principal energy levels (electron shells), as predicted...
For the first eighteen elements, the electrons fill the principal energy levels (electron shells), as predicted by simple rules. In other words, electrons occupy the lowest electron shell that is not filled. The formula 2n2 is used to calculate the maximum capacity of each electron shell. (10 pts) Complete the table below by filling in all the missing information. You may use your periodic table. Element Atomic # Electrons present in n = 1 n = 2 n = 3...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT