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
vekshin1
3 years ago
10

Which of these 2A elements has the largest atomic radius?

Chemistry
1 answer:
olya-2409 [2.1K]3 years ago
5 0

Answer: Option (E) is the correct answer.

Explanation:

When we move from top to bottom in a group then there occurs an increase in atomic size of the atoms due to increase in the number of electrons.

For example, in group 2A elements beryllium is the smallest in size whereas radium being at the bottom is the largest in size.

Also, atomic number of beryllium is 4 and atomic number of radium is 88.

Thus, we can conclude that out of the given options radium is the 2A element which has the largest atomic radius.

You might be interested in
During an experiment, a student observes the formation of a precipitate. Why does this indicate that a chemical reaction is like
My name is Ann [436]

A. A solid forms, and there is a change of color.

8 0
3 years ago
The reactivity of metals on the periodic table
kari74 [83]

Explanation:

The most reactive metals are found on the left of the periodic table, in the blue column, known as the alkali metals. Their reactivity increases as we go down column (group) one. Reactive metals, when attached to less reactive metals, have the ability to prevent the less reactive metal from rusting.

8 0
3 years ago
HELP PLZ
Vaselesa [24]

Answer:

Scientific Explanation of weather change and cause storms is described below in detail.

Explanation:

The weather is just the nature of the environment at any time, including items such as warmth, rainfall, air pressure, and cloud shelter. Daily variations in the weather are due to storms and winds. Seasonal variations are due to the Earth spinning nearby the sun. Warm beginnings often produce stormy weather as the heated air mass at the exterior rises above the cool air mass, creating clouds and storms.

4 0
3 years ago
What is the molar mass of zinc metal
hodyreva [135]
I believe it is 65.37.

Let me know if this is correct. Also good luck!!
4 0
3 years ago
Read 2 more answers
Elena held a rock weighing 1 N in her hand. The rock has no velocity. <br> KE________?
nignag [31]

KE = 0

<h3>Further explanation  </h3>

Energy is the ability to do work  

Energy because its motion is expressed as Kinetic energy (KE) which can be formulated as:  

\large{\boxed{\bold{KE=\frac{1}{2}mv^2}}}

So for two objects that have the same speed, the greater the mass of the object, the greater the kinetic energy  

The stone in hand is in a motionless state (at rest) so that its velocity (v) = 0, so it has no kinetic energy

But this stone can have <em>potential energy that is gained due to its height</em>

5 0
3 years ago
Other questions:
  • Name the biome that has nutrient rich soil and is most often used for agriculture
    6·1 answer
  • Which astronomer spent 20 years plotting the positions of the planets?
    13·1 answer
  • PLEASE ANSWER
    5·2 answers
  • You have made use of the Le Chatelier principle in this lab. Explain how the Le Chatelierprinciple is used to help formation of
    9·1 answer
  • In an experiment, having too many variables
    10·2 answers
  • Superstition or science
    11·2 answers
  • Along a front, which air is always forced up?
    13·1 answer
  • 5.40X10^2kj converted into j
    6·1 answer
  • For the reaction N2+3H2⇌2NH3, the metals Fe and Mo used as catalyst. which of the following is NOT a reason that catalysts have
    11·1 answer
  • I need help pleaseee
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!