I think the answer is $0.03
valence electrons are the number of electrons in the outermost shell.
electron configuration is where the electrons are arranged in ascending order of energy shells
the electron configurations for the elements given are as follows
C - 2,4
Al - 2,8,3
Na - 2,8,1
Ca - 2,8,8,2
from the given elements, Aluminium has 3 electrons in its outermost shell.
answer is Aluminium
Answer:
Yes
Explanation:
The genetic testing is also called as the DNA testing. It is mainly used for identifying the changes in the DNA sequence or the chromosomes structure. It can also measure the results in the genetic changes.
Couples those who are planning to start a family should go for a genetic testing so as to minimize a risk in the upbringing or growth of their offspring. By doing a genetic testing a couple can well know the conditions of the baby that could affect them. The result from a genetic testing can help to plan better before starting a family. Therefore, it is advisable for couples to go for a genetic testing so that they plan better by knowing the conditions.
Answer:
false
Explanation:
first of all;-energy lead to an indotermic reaction.
indotermic is a reaction that absorbs energy \
*it has positive enthalpy of reaction
*Heat content of product is greater than that of reactant
*Heat is added to reactant side
example;- CO^2+2H^2+891kj --------- CH4 +2O2
