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
vladimir2022 [97]
2 years ago
9

Which element has two valence electrons?

Chemistry
2 answers:
Colt1911 [192]2 years ago
6 0

Answer:

It is A) Calcium

Explanation:

Calcium has an electronic configuration of 2,8,8,2

Alenkinab [10]2 years ago
5 0

Answer: The answer is A! hope this helps :)

Explanation: Calcium has 2 valence electron.

You might be interested in
What are the main properties of liquids (in contrast to gases and solids)? check all that apply. check all that apply. liquids h
saw5 [17]
B is true because liquids are still more compact than gases, although they are loose, they aren't completely free. They also don't have a definite volume, making them assume the shape of their container. As for compression, liquids are harder to compress compared to gases.
5 0
3 years ago
Why does a can of diet cola float in water but a can of regular cola does not
maria [59]

Answer:

because there more acid in diet cola

7 0
3 years ago
(1) (a) In an equilibrium reaction between gases Q2 and R2 to form QR, the energy content of the reactants is 100KJ and that of
andrezito [222]

Answer:

a is my answer

Explanation:

7 0
2 years ago
What is the pH of a 6.4*10-10 m oh- solution?
egoroff_w [7]
PH: 4.80617997
pOH: 9.1938200
[H+]: 1.562
[OH-] 6.4E-10
Acid
8 0
3 years ago
2. STEM The mass of an atom of helium is about 4.002 atomic units.
Anit [1.1K]

Answer:

The approximate mass of beryllium is 9.0045 u.

Explanation:

Given data:

mass of helium= 4.002 u

mass of beryllium which is 2.25 times of mass of helium= ?

Solution:

we will multiply the mass of helium with 2.25 times,

4.002 u × 2.25 = 9.0045 u

so the mass of beryllium atom would be 9.0045 u.

6 0
3 years ago
Other questions:
  • Calling all chemists...please help me!  Ive attached a screen shot of the problem
    12·1 answer
  • Which best explains why sawdust burns more quickly than a block of wood of equal mass under the same conditions?
    6·2 answers
  • What are the reactants of photosynthesis?carbon dioxide and hydrogenhydrogen, oxygen, and waterlight energy, water, and carbon d
    8·2 answers
  • How many valance electrons are in group 16
    5·2 answers
  • The brass cube has a mass of 67.2 grams. Each side is 2 cm long. What is the density of the brass cube? A) 2.8 g/cm 3 B) 3.15 g/
    7·1 answer
  • Which compares the problem associated with radioactive waste created from generating electricity using fusion reactions to waste
    10·1 answer
  • After scientists get the results of their experiments, they...
    5·1 answer
  • Which is a characteristics of all ions
    9·1 answer
  • How long does it take light to travel from the Earth to the Sun? The speed of light is 2.998×10^5 km/s and the Sun is 1.496×10^8
    6·1 answer
  • Do you think that photochemical smog levels are high during the winter or during the summer? Explain.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!