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
Contact [7]
3 years ago
14

Which of the following elements have properties similar to those of astatine?

Chemistry
2 answers:
Jobisdone [24]3 years ago
5 0

Answer:

F, Br, l

Explanation:

Astatine is radioactive element which has symbol, At and the atomic number of the element is 85.

It belongs to the group 17 and period 6.

The elements in the same group shows similar properties as they have same general electronic configuration.

So, it shows similar properties with group 17 elements which are - F, Cl , Br, l

<u>Answer- A</u>

vekshin13 years ago
3 0
<h3><u>Answer;</u></h3>

F, Br, l

<h3><u>Explanation;</u></h3>
  • Astatine is a member of the halogen family, elements in Group 17 (VIIA) of the periodic table.
  • It is a highly radioactive element and it is the heaviest known halogen. Astatine is similar to the elements above it in Group 17 (VIIA) of the periodic table, especially iodine.
  • One property of iodine is that it tends to collect in the thyroid gland .
You might be interested in
What is the volume of 0.4 mole of gas at stp? 30 points!
iragen [17]

Answer:

89.6 liters

Explanation:

A STP (standard temperature and pressure) ONE mole of any idea gas will occupies 22.4 liters. So,...

4 moles x 22.4 L/mol = 89.6 liters

5 0
2 years ago
Read 2 more answers
A chemist measures the amount of hydrogen gas produced during an experiment. She finds that 264. g of hydrogen gas is produced.
Lesechka [4]

Answer:

The answer is 130.953 g of hydrogen gas.

Explanation:

Hydrogen gas is formed by two atoms of hydrogen (H), so its molecular formula is H₂. We can calculate is molecular weight as the product of the molar mass of H (1.008 g/mol):

Molecular weight H₂= molar mass of H x 2= 1.008 g/mol x 2= 2.01568 g

Finally, we obtain the number of mol of H₂ there is in the produced gas mass (264 g) by using the molecular weight as follows:

mass= 264 g x 1 mol H₂/2.01568 g= 130.9731703 g

The final mass rounded to 3 significant digits is 130.973 g

4 0
3 years ago
A force of 450 N accelerates a box across a frictionless surface at a rate of 15 m/s2. What is the mass of the box?
kari74 [83]
Answer: Option A) 30 kg

MARK BRAINLEIST PLSS
7 0
3 years ago
Read 2 more answers
Can you help me understand this question
snow_tiger [21]
You should talk about how it evaporates then it turn into a gas then back in to a liquid
6 0
3 years ago
As the thermal energy of matter increases, its particles usually spread out, causing
sveta [45]

Answer:

As the thermal energy of matter increases, its particles usually spread out, causing the substance to expand.

Explanation:

<em> i have a book about this stuff</em>

8 0
3 years ago
Other questions:
  • Consider the following unbalanced redox reaction:
    14·1 answer
  • A military jet cruising at an altitude of 12.0kmand speed of 1900./kmh burns fuel at the rate of 74.4/Lmin. How would you calcul
    5·1 answer
  • 1.05 Quiz: Measure Angles
    13·2 answers
  • The chemical symbol for sodium is <br> a. na. <br> b. sn. <br> c. s. <br> d. n.
    9·1 answer
  • An ion is an atom that has has gained or lost:
    7·1 answer
  • Which is the equation of a circle with its center at (-4,2) and a radius of 4?
    15·1 answer
  • How to remove acetone from a school chromebook
    15·2 answers
  • This artwork took six colors to complete.
    8·1 answer
  • In your own words, please describe the difference between a complete ionic equation and a net ionic equation.
    5·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!