3 years ago

Which element has an electron configuration of [Kr]5s2

Chemistry

1 answer:

nydimaria [60]3 years ago

5 0

Element name = strontium

You might be interested in

Identify which sets of Quantum Numbers are valid for an electron. Each set is ordered (n,ℓ,mℓ,ms).

skad [1K]

3,2,0,1/2

1,0,0,1/2

3,2,2,1/2

4,2,1,1/2

2,1,-1,-1/2

THEY ARE VALID

3 0

3 years ago

If a substance is composed entirely of one type of atom, it is known as a(n) _______.

Firlakuza [10]

A substance is composed entirely of one type of atom, it is known as a Chemical element
because mixture contain more than one type of atom and it cannot be neutron or isotope
so correct option is B
hope it helps

8 0

3 years ago

Which of the following is ONE of the signs of a chemical change

pickupchik [31]

Answer:

um i one of what?

Explanation:

6 0

3 years ago

Read 2 more answers

What is silicons reactivity level

egoroff_w [7]

Answer:

this is your answer

Explanation:

Silicon, like carbon, is relatively inactive at ordinary temperatures; but when heated it reacts vigorously with the halogens (fluorine, chlorine, bromine, and iodine) to form halides and with certain metals to form silicides.

hope it helps

good day (≧▽≦)

5 0

3 years ago

Read 2 more answers

Write a full equation for the reactions between magnesium and sulfuric acid

NikAS [45]

Explanation:

Hey there!!

See solutions in picture.

Hope it helps..

5 0

4 years ago