Which element has atoms with valence electrons in a higher energy level than those of calcium (Ca)? (1 point)

oxygen (O)

lithium (Li)

bromine (Br)

cesium (Cs)

Lithium element contains one electron therefore valence electron will be one.  

The highest level of energy is due to valence electrons which are available to the atom.

The calcium has 2 valence electrons which has electrons with high energy.

These energy will be used by the electron during the chemical reaction, and they will either lose or gain valence electron.

Learn more at

calcium

Explanation:

2 electron

car a and b are moving in opposite directions

plz mark.me the brainliest i rlly need this kind of yours in exchange

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .