Best Answer: First true and second false.- ... Isotopes of an element have different atomic masses is TRUE. An isotope is an element, say carbon for example, that ...
Absent-mindedness is where a person shows inattentive or forgetful behaviour. It can have three different causes: a low level of attention (blanking or zoning out) intense attention to a single object of focus (hyperfocus) that makes a person oblivious to events around him or her;
Associated concepts: absent intent, absent malice, absent the elements of a crime, new trial based on absence of an accused, counsel, evidence, absent witness See also: lost, oblivious, truant, vacuous.r Allworthy had been absent a full quarter of a year in London, on some very particular business, though I know not what it was; but judge of its importance by its having detained him so long from home, whence he had not been absent a month at a time during the space of many years.