All categories

3 years ago

Name an element with electrons in the f subshell

Chemistry

1 answer:

nevsk [136]3 years ago

4 0

Answer:

Radon

Explanation:

Radon is present in last group of periodic table which is eighteen.

It is the member of noble gases.

The member of eighteen group are inert.

Radon have complete octet and also inert.

Its atomic mass is 222 amu.

Its atomic number is 86.

Electronic configuration:

Rn₈₆ = [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶

You might be interested in

Given his arrangement of the periodic table, Mendeleev was able to predict three elements that had not yet been discovered. He p

quester [9]

Answer:

Look in explanation.

Explanation:

Mendeleev has ordered the elements based on increasing atomic mass, he has skipped some elements but assumed that they existed and managed to find the atomic mass of the "unknown" elements.

6 0

3 years ago

At 650 mm hg a gas has a volume of 190 l what is its volume at standard pressure

vovangra [49]

Answer:Volume occupied by the gas at standard pressure is 162.5 L.

Explanation:

Pressure of the gas when it occupies volume of 190 L = 650 mmHg

Volume occupied by the gas when the gas is at standard pressure.

The value of standard pressure = 1 atm = 760 mmHg

$P_1=650 mmHg,V_1=190 L,P_2=760 mmHg,V_2=?$

According to Boyle's Law: $Pressure\propto \frac{1}{Volume}$ (at constant temperature)

$P_1\times V_1=P_2\times V_2$

$V_2=\frac{P_1\times V_1}{P_2}=\frac{650 mmHg\times 190 L}{760 mmHg}=162.5 L$

Volume occupied by the gas at standard pressure is 162.5 L.

6 0

4 years ago

3. Two or more substances that are not

mihalych1998 [28]

Answer:

Its a mixture.

3 0

4 years ago

5. The element copper has naturally occurring isotopes with mass numbers of 63

natali 33 [55]

Answer:

63.616

Explanation:

DATA

1. first atomic mass;m1=63

second atomic mass;m2=65
first percentage;p1= 69.2%
second percentage me;p2=30.8%
average mass;avg= ?

SOLUTION

avg= (m1)(p1) + (m2)(p2)

100

avg= (63)(69.2) + (65)(30.8)

100

avg= 4359.6 + 2002

100

avg= 6361.6

100

avg= 63.616

4 0

3 years ago

Read 2 more answers

calculate the volume of a rectangular prism with a length of 5.6cm, a width of 2.1cm, and a height of 6.6cm

Rus_ich [418]

The volume of a prism is base times height so it should be 5.6 times 2.1 times 6.6 which gives us 77.616cm^3

7 0

3 years ago

Read 2 more answers