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What is the chemical symbol for ruthenium?
The chemical symbol of rutherfordium is Rf.
One of the electrons farthest away from the nucleus of the atom?
Valance electrons are furthest from the nucleus.
How is acceleration calculated?
Acceleration = final velocity (v)- starting velocity (u) divided by time a=(v-u)/t example: a car starts from rest and accelerates to 50 m/s in 10 seconds. u=0 m/s v=50m/s t=10s => a=(v-u)/t => a=(50-0)/10 a=5m/s² Be careful with the units: Time should be expressed in seconds, and all velocities in metres per second. As a result, acceleration is expresses as metres per second per second, or metres per second squared. Hope this helps!
What is the maximum number of electrons the first energy level will hold?
The number of electrons in the lowest electron shellis2 in the first or K shell (subshell 1s)---For other shells, the maximum is determined by the formula 2n2:2) 8 in the L shell (subshells 2s, 2p)3) 18 in the M shell (subshells 3s, 3p, 3d)4) 32 in the N shell (subshells 4s, 4p, 4d, 4f)5) 50 in the O shell (subshells 5s, 5p, 5d, 5f, 5g*)6) 72 in the P shell (subshells 6s, 6p, 6d, 6f, 6g, and an unnamed subshell)7) 98 in the Q shell (subshells 7s, 7p, 7d, 7f, 7g, and two unnamed subshells)* the highest existing subshells are 5f, 6d, and 7s* the highest currently predicted subshells are 7p and 8s* no existing element has more than 32 electrons in any shellThe maximum per subshell is determined by the formula 2(2L+1) (s is 0):s subshells can have 2 electronsp subshells can have 6 electronsd subshells can have 10 electronsf subshells can have 14 electronsg subshells can have 18 electrons*There are no elements with electrons past the f subshell, so the shells with 22 and 26 electrons have no name. The largest element created (Roentgenium, element 111) has 2 electrons in the 7s shell.
