1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
xxTIMURxx [149]
2 years ago
13

Select the correct answer.

Chemistry
2 answers:
klio [65]2 years ago
4 0

Answer:

d. The correct answer for your questions is Sr<Ca<Be

nikdorinn [45]2 years ago
3 0

Answer:

Answer:- choice d is correct. Sr<Ca<Be .

Explanations:- Br, Ca, and Sr are all elements of same group as they all have 2 valence electrons. As we move down in a group, a new shell is being added that increases the size of the atom. As the size of an atom increases, it is easy to remove the electron from it's outer most shell in it's gaseous state. Since, Be is above Ca and Ca is above Sr. The size increases in the order, Be < Ca < Sr. It means Be is the smallest one of them and so it's hard to remove from it's outer most shell and hence it's ionization energy is higher.

Sr is largest one in these three elements and so it's easy to remove outer most electron from it that means the ionization energy is least. Ca is between Be and Sr.

So, an increasing order of ionization energy is Sr<Ca<Be . Choice D is correct.

You might be interested in
What do you think happens when paleontologists find only partial remains?
Jobisdone [24]

Answer:

To study the organism.

Explanation:

When paleontologists find only partial remains of some organism so they study it in order to find the characteristic of the organism and find out the history of earth. paleontologists are the scientists who study fossils of plants and animals to study the history of earth so we can say that paleontologists study the partial remains in order to study the history of earth.

8 0
3 years ago
What do electric forces do​
Oksana_A [137]

Answer:

An electric force is exerted between any two charged objects. Objects with the same charge, both positive and both negative, will repel each other, and objects with opposite charges, one positive and one negative, will attract each other.

Explanation:

3 0
3 years ago
Use the periodic table to answer the following questions.
Step2247 [10]
The answer is a (b)= 2
5 0
3 years ago
Examine the incomplete statement.
hjlf

Answer: Option (c) is the correct answer.

Explanation:

In liquids, molecules are held by slightly less strong intermolecular forces of attraction as compared to solids.

Hence, molecules of a liquid are able to slide past each other as they have more kinetic energy than the molecules of a solid.

As a result, liquids are able to occupy the shape of container in which they are placed. Also, liquids have fixed volume but no fixed shape.

Thus, we can conclude that liquids have a variable shape and a fixed volume.

5 0
3 years ago
Read 2 more answers
For which of the following is heat energy absorbed?
Dvinal [7]
Your answer is sublimation.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the chemical equation of photosynthesis
    12·2 answers
  • Which is an example of negative phototropism?
    5·2 answers
  • One atom of silicon can properly combined in a compound with
    5·1 answer
  • A student performed an experiment to test the acidity of foods. Put the following steps in the order they should occur.
    15·1 answer
  • A car travels with a speed of 91.4 kilometers per hour (km/hr). Convert this speed to meters per second (m/s).
    15·1 answer
  • The distance between an object and a reference point is the object's __________. displacement neutral point position velocity
    15·1 answer
  • PLEASE ANSWER QUICK
    14·2 answers
  • What is the density of an object whose mass is 120 grams and whose volume is 60 cm3? (D=m/v)
    15·2 answers
  • Which statements describe the fossil record? Check all that apply.
    14·2 answers
  • Need answer for 9.0mm x 2.0mm x 2.0mm
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!