Which one(s) below right about valence electrons?

2 answers:

7 0

Valence electrons are in the outermost area, have the highest energy, and are all electrons of the atom. This would be A,C and D. B might be a variable, as the Alkali Metals are highly unstable.
Electrons described by E are in Ground State.

grandymaker [24]3 years ago

3 0

Answer choice A, B, and C is right about the valence electrons. For answer choice D and E, Would in it be a more of an element kind of choice. whether the element is closer to the left side of the periodic table or not determines the high and low energy.

You might be interested in

Which scientist's atomic model is most recent?

Natali [406]

Answer:

B.Rutherford's

Explanation:

I know it

8 0

4 years ago

Read 2 more answers

Write 0.000000093425 in Scientific Notation with 4 significant figures.

Romashka-Z-Leto [24]

Answer: The given number in scientific notation is $9.342\times 10^{-8}$

Explanation:

Scientific notation is the notation where a number is expressed in the decimal form. This means that the number is always written in the power of 10 form. The numerical digit lies between 0.1.... to 9.9.....

If the decimal is shifting to right side, the power of 10 is negative and if the decimal is shifting to left side, the power of 10 is positive.

We are given:

A number having value = 0.000000093425

Converting this into scientific notation, we get:

$\Rightarrow 0.000000093425=9.342\times 10^{-8}$

Hence, the given number in scientific notation is $9.342\times 10^{-8}$

6 0

4 years ago

Read 2 more answers

What is the symbol for an atom containing 20 protons and 22 neutrons?

k0ka [10]

Answer:

Calcium

Explanation:

4 0

3 years ago

What element has atoms that can form halide ions?

Jet001 [13]

A halide ion is a halogen atom bearing a negative charge. The halide anions are fluoride (F−), chloride (Cl−), bromide (Br−), iodide (I−) and astatide (At−). Such ions are present in all ionic halide salts. Halide minerals contain halides.

8 0

3 years ago

An enzyme is discovered that catalyzes the chemical reaction:SAD -------->HAPPY

jekas [21]

Answer: Km = 10μM

Explanation: Michaelis-Menten constant (Km) measures the affinity a enzyme has to its substrate, so it can be known how well an enzyme is suited to the substrate being used. To determine Km another value associated to an eznyme is important: Turnover number (Kcat), which is the number of time an enzyme site converts substrate into product per unit time.

Enzyme veolcity is calculated as:

$V_{0} = \frac{E_{t}.K_{cat}.[substrate]}{K_{m}+[substrate]}$