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mrs_skeptik [129]
3 years ago
5

Which element has a larger atomic radius than sulfur?

Chemistry
2 answers:
koban [17]3 years ago
7 0

Answer:

cadmium

Explanation:

Novay_Z [31]3 years ago
6 0

Cadium

Down a period, atomic radii decrease from left to right due to the increase in the number of protons and electrons across a period.

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What is the electron configuration for the Co3+ ion?
liq [111]

Answer:

1s2 2s2 2p6 3s2 3p6 3d4 4s2

Explanation:

Cobalt has twenty seven electrons hence Co3+ has twenty four electrons. It has lost three electrons from its valence shell. In filling the orbitals, we keep in mind that the energy of the 4s level is higher than that of the 3s level when a transition metal forms a complex hence the 4s is filled before the 3s level as shown in the answer above.

6 0
3 years ago
A student did an experiment on the cycling of environmental gases. She placed water and bromthymol blue in each of four test tub
boyakko [2]
Numbers 2 is your answer
5 0
3 years ago
The shape (or geometry) of the amide anion, NH2-, the number of lone pairs on nitrogen, and the hybridization at nitrogen are, r
PtichkaEL [24]

Answer : The correct option is, (B) bent, 2, and sp^3

Explanation :

Formula used  :

\text{Number of electron pair}=\frac{1}{2}[V+N-C+A]

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

The given molecule is, NH_2^-

\text{Number of electrons}=\frac{1}{2}\times [5+2+1]=4

Number of bond pair = 2

Number of lone pair = 2

The total number of electron pair are 4 that means the hybridization will be sp^3 and the electronic geometry of the molecule will be tetrahedral.

But as there are 2 atoms around the central oxygen atom, the third and fourth position will be occupied by lone pair of electrons. The repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent or angular.

Hence, the correct option is, (B) bent, 2, and sp^3

3 0
3 years ago
Choose all the answers that apply. What are examples of how science has influenced technology?
Fudgin [204]

Answer:

A and B

Explanation:

A: The discovery of x- rays is a scientific discovery that led to X-ray machines which is technology.

B: Finding out that massive amounts of energy can be released by splitting the nucleus of an atom was the discovery and it led to nuclear power plants.

Satellites helping scientists map the earth doesn't really have an example of science. It just says that Satellites help scientists, and satellites are technology.

Robotic machines are also technology. Robots assisting doctors in surgery is technology helping people not science influencing technology.

So A and B would be the answers.

Hope this helps :)

5 0
3 years ago
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How fast it changes position in time is the objects speed
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