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
deff fn [24]
3 years ago
14

What is true about the element Francium (Fr, atomic number 87)? choose 3

Chemistry
1 answer:
larisa86 [58]3 years ago
6 0

Answer :

(B) It is likely to form ionic bonds

(D) It is in period seven

(E) It is a metal

Explanation :

Francium is an element whose symbol is 'Fr' and atomic number is 87.

Group 1 alkali metals consists elements Lithium, Sodium, Potassium, Rubidium, Caesium and Francium. Periodic table also shown below.

Francium belongs to the group 1 (alkali metal) and it is in period seven.

It has one valence electron, the electronic configuration of Francium is [Rn} 7s^{1}.

Alkali metals have tendency to form ionic compounds because they have +1 charge.

You might be interested in
Which is not a characteristic of all metals? Select one: a. soft and easy to cut b. Good electrical conductors c. Ductile and ma
sammy [17]
The answer is option a.soft and easy to cut


Hope it helps
And if it does pls mark as brainliest
8 0
3 years ago
If 25.4 grams of water react to form 2.8 grams of hydrogen, how many grams of oxygen must simultaneously be formed?
aalyn [17]
The mass of oxygen and hydrogen must be equal to the mass of the substance they create the water. So if the hydrogen is 2.8 g the oxygen must account for the rest of the mass. Basically just subtract 25.4-2.8=mass of oxygen
5 0
3 years ago
Read 2 more answers
If the caffeine concentration in a particular brand of soda is 2.01 mg/oz, drinking how many cans of soda would be lethal? assum
dedylja [7]
1 can of soda has 12 ounces * 2.01 mg/oz = 24.12 mg of caffeine.

1 gram = 1000 mg

10 grams x 1000 mg = 10,000 mg

Divide total mg by mg per can:

10,000 / 24.12 = 414.59 cans

Round to 415 cans
4 0
3 years ago
If I place a pot of water over a fire (heat source), what will happen to the water?
seropon [69]

Answer:

C. All of the water will get warm.

Explanation:

The water will get warm all together but slowly, eventually when it hits a certain high heated temperature it will start to boil.

6 0
3 years ago
A single gram of 235U fuel can heat and boil 2.49 x 107 g of water. What volume of water is this?
iogann1982 [59]
You just have to convert the mass of water into volume.

To do that you use the density of water, which is about 1.0 g/ ml

So, from the formula of density D = M / V, you get V = M / D

=> V = 2.49 * 10^7 grams / 1.0 g / ml = 2.49 * 10 ^ 7 ml

You can pass that to liters using the conversion factor 1000 ml = 1 l

2.49 * 10^7 ml * 1 l / 1000 ml = 2.49 * 10^4 l = 24,900 l

Answer: 24,900 l
6 0
3 years ago
Other questions:
  • Which is a chemical property that can be used to identify hydrogen peroxide? A. clear and colorless B. reacts when its exposed t
    6·2 answers
  • A chemist titrates 160.0mL of a 0.3403M aniline C6H5NH2 solution with 0.0501M HNO3 solution at 25°C . Calculate the pH at equiva
    10·1 answer
  • Can anyone help me? it's chemistry​
    15·1 answer
  • Fe(II) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(II)
    14·1 answer
  • Which structures do plant cells have for making food that animal cells do not?
    7·2 answers
  • CH3 + HCl <=> CH3Cl + H2O
    7·1 answer
  • most planets have --- but none has a --- like earth does. A. a biosphere; hydrosphere., B. an atmosphere; cryosphere., C. an atm
    8·2 answers
  • An electrical company charges 15 p per unit of energy (kWh).
    14·1 answer
  • Draw the electron configuration for a neutral atom of nitrogen.
    13·1 answer
  • A sample of a pure substance with a density of 3 g/mL is separated into two pieces. One piece has a mass of 50 g and the other p
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!